富士高周波工業 List of Products and Services

This document is the PowerPoint material for a technical seminar hosted by our company. 【Seminar Title】 Laser Hardening Technology Seminar, 3rd Session: "Case Studies on Solving Laser Hardening Challenges" 【Content】 We will explain specific case studies on how challenges in laser hardening were addressed, detailing the issues faced in previous heat treatments and how they were resolved through laser hardening. This seminar will be beneficial for those currently dealing with challenges in heat treatment. 1. Company Introduction 2. Case Studies on Problem Solving 3. Conclusion 【Recommended for!】 - Those who want to learn more about the applications of laser hardening - Those who want to study the benefits of laser hardening through case examples

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【Conventional Issues】 In high-frequency hardening, the shaft diameter becomes φ6, resulting in hardening all the way to the interior, which poses a toughness issue as it can break under impact. However, the surface of the shaft wears out, so it was desired to harden it. 【Advantages of Laser Hardening】 With laser hardening, only the surface of the φ6 shaft was hardened to a depth of 0.3mm. By not hardening the interior, both toughness and surface wear resistance characteristics were achieved. 【Specifications】 Dimensions: φ6×59.5mm Material: SCM435 Hardness: HRC51 or higher Depth: 0.3mm

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This document is the PowerPoint material for a technical seminar hosted by our company. 【Seminar Title】 Laser Hardening Technology Seminar No. 2: "Seven Differences Between Laser Hardening and Induction Hardening" 【Content】 Our main business is induction hardening. We will explain the differences between laser and induction hardening from the perspective of an induction hardening specialist, divided into seven categories. This seminar is ideal for those who have the question, "The drawing specifies induction hardening, but how does it change if we use laser hardening?" 1. Company Introduction 2. Seven Differences Between Laser Hardening and Induction Hardening - Heating Method - Cooling Method - Hardening Area - Hardening Depth - Hardening Hardness - Thermal Distortion - Quality Control 3. Summary 【Recommended For!】 - Those who want to know more about partial hardening of metals - Those who want to clearly understand the differences between the two technologies

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This document is the PowerPoint material for a technical seminar hosted by our company. 【Seminar Title】 Laser Cladding Technology Seminar No. 1: "Basics of Laser Cladding" 【Content】 The term laser cladding may be unfamiliar to many. First, we will explain what this technology is. This seminar is aimed at beginners in laser cladding. 1. Company Introduction 2. What is LC? 3. Other Overlay Technologies Besides LC 4. Questions About LC 5. Quality Evaluation in LC Construction 6. Parameters of LC 7. Summary 【Recommended for the following people!】 - Those who know very little about laser cladding. - Those who want basic information about laser cladding. - Those who want to know what can be done with laser cladding.

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This document is the PowerPoint material for the technical seminar hosted by our company. 【Seminar Title】 Laser Hardening Technology Seminar No. 1: "Basics of Laser Hardening" 【Content】 This is an explanation of the fundamental technology of laser hardening. It covers the technical characteristics of laser hardening, the metal structures that can be achieved through laser hardening, and the temperature distribution involved. This seminar is a good introduction for beginners to understand the technology of laser hardening. 1. Company Introduction 2. What is Heat Treatment? 3. What is Laser Hardening? 4. Why is Laser Hardening Gaining Attention? 5. Summary 【Recommended for the Following People!】 - Those who know very little about laser hardening. - Those who want basic information about laser hardening. - Those who want to know what can be achieved with laser hardening.

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At Fuji High Frequency Industry Co., Ltd., we hold "Laser Hardening Seminars" and "Laser Cladding Seminars." "I read the technical report, but I don't quite understand the content..." "I want to ask questions directly about the report!" "I'm better at understanding by watching videos than by reading." If you feel this way, these seminars are recommended for you. Whether you are "completely unfamiliar," "want to know more application examples," or "want to hear about trouble cases," we offer a seminar that covers everything from the basics to applications, lasting about 45 minutes. 【Seminar Content (Partial)】 < Laser Cladding Seminar > ■ Applications of Laser Cladding ■ Fuji High Frequency Industry's Laser Cladding Equipment ■ Data by Material Type for Laser Cladding < Laser Hardening Seminar > ■ Basics of Laser Hardening ■ Seven Differences Between Laser Hardening and High-Frequency Hardening ■ Case Studies for Solving Laser Hardening Challenges *For more details, please download the seminar materials or feel free to contact us.

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This document is the PowerPoint material for a technical seminar hosted by our company. 【Seminar Title】 Laser Hardening Technology Seminar No. 8: "Frequently Asked Questions about Laser Hardening" 【Content】 So far, we have had discussions about laser hardening with various customers. From those discussions, we have picked out several frequently asked questions and will provide a brief explanation. This seminar will be useful for anyone who has questions about laser hardening. 1. Company Introduction 2. Common Q&A about Laser Hardening 3. Summary 【Recommended for!】 - Those who want to know a bit more about the niche aspects of laser hardening - Those who want to learn about common questions regarding laser hardening

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This is the material for the technical seminar hosted by our company. 【Title】 Laser Cladding Technology Seminar No. 7: Introduction of the Precision Laser Coating Device "ALPION" & Metal 3D Printing Device "Meltio" 【Content】 Please consider this seminar as a presentation of the evolved technology of laser cladding. It is a technique that uses a multi-type (6 beams) laser to build up powder or wire in layers. This seminar will help you understand what differentiates it from conventional laser cladding and what its features are. 1. Company Introduction 2. What is AM Technology? 3. Introduction of Multi-Beam Direct Energy Deposition (DED) ALPION 4. Introduction of Multi-Beam Wire DED Meltio 5. Summary 【Recommended for!】 - Those who want to learn about the latest laser cladding technology - Those who want to learn about metal 3D printing technology using wire

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This document is the PowerPoint material for the technical seminar hosted by our company. 【Seminar Title】 Laser Hardening Technology Seminar No. 7: "Hardening Data by Material for Laser Hardening" 【Content】 There are various materials that are easy or difficult to harden in laser hardening. This is briefly explained, including the reasons. This seminar serves as a reference for design engineers considering laser hardening during the design phase. 1. Company Introduction 2. Carbon Steel for Machine Structures (S××C), Alloy Steel (SCM×××) 3. Cast Materials (FCD×××, FC×××) 4. Martensitic Stainless Steel (SUS440C, SUS420J2) 5. Tool Steel (SKD11, SKD61) 6. Summary 【Recommended for!】 - Those who want to know about materials commonly used in laser hardening - Those who want to understand the hardening characteristics of various materials

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This document is the PowerPoint material for a technical seminar hosted by our company. 【Seminar Title】 Laser Cladding Technology Seminar No. 6: "Frequently Asked Questions about Laser Cladding" 【Content】 So far, we have had discussions about laser cladding with various customers. From those discussions, we have picked out several frequently asked questions and will provide brief explanations. This seminar will be a useful reference if you have any questions about laser cladding. 1. Company Introduction 2. Common Q&A about Laser Cladding 3. Summary 【Recommended for!】 - Those who want to know some niche aspects of laser cladding - Those who want to learn about common questions regarding laser cladding

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This document is the PowerPoint material for a technical seminar hosted by our company. 【Seminar Title】 Laser Hardening Technology Seminar No. 6: "Laser Hardening Equipment of Fuji High-Frequency Industry" 【Content】 We will introduce the laser heat treatment equipment at Fuji High-Frequency Industry. We will present a top-class range of equipment in Japan. This seminar will be a valuable reference for engineers considering prototyping or development at Fuji High-Frequency Industry. 1. Company Introduction 2. History of Lasers 3. Laser Oscillators We Own 4. Reasons for Using Semiconductor Lasers 5. Temperature Feedback System 6. Conclusion 【Recommended for the Following People!】 - Those who want to deepen their knowledge about laser hardening equipment - Those who want to learn about optional equipment for laser hardening systems

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This document is the PowerPoint material for the technical seminar hosted by our company. 【Seminar Title】 Laser Cladding Technology Seminar, 5th Session: 'Data by Laser Cladding Material' 【Content】 In laser cladding, powders made primarily from three types of elements are commonly used. We will explain the hardness, ease of buildup, and other issues related to cobalt (Co-based), nickel (Ni-based), and iron (Fe-based) powders used in laser cladding. This seminar will serve as a reference for selecting powders. 1. Company Introduction 2. Laser Cladding with Co-based Powders 3. Laser Cladding with Ni-based Powders 4. Laser Cladding with Fe-based Powders 5. Summary 【Recommended for!】 - Those who want to know the laser cladding characteristics of various powders - Those considering laser cladding but unsure which powder to use

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This document is the PowerPoint presentation for a technical seminar hosted by our company. 【Seminar Title】 Laser Hardening Technology Seminar No. 5: "What Cannot Be Done with Laser Hardening and Trouble Cases" 【Content】 It is often mistakenly believed that laser hardening can do anything. We will honestly explain the limitations due to geometric constraints and past trouble cases that have occurred. I believe this will be an interesting technical seminar for those who have some doubts about laser hardening. 1. Company Introduction 2. What Cannot Be Done with Laser Hardening 3. Laser Hardening Trouble Cases 4. Conclusion 【Recommended for the Following People!】 - Those who want to know about troubles related to laser hardening - Those who want to have a general understanding of the capabilities of laser hardening

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This document is the PowerPoint material for a technical seminar hosted by our company. 【Seminar Title】 Laser Cladding Technology Seminar, 4th Session: "Laser Cladding Equipment of Fuji High Frequency" 【Content】 We will explain the laser cladding equipment at Fuji High Frequency Industries. Here, we will discuss the equipment unique to laser cladding. This seminar is aimed at those considering the implementation of such equipment. 1. Company Introduction 2. History of Lasers 3. Laser Oscillators We Own 4. Reasons for Using Semiconductor Lasers 5. Powder Supply Nozzle 6. Conclusion 【Recommended for!】 - Those who want information about laser cladding equipment - Those who want information about the equipment owned by Fuji High Frequency

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This document is the PowerPoint material for a technical seminar hosted by our company. 【Seminar Title】 Laser Hardening Technology Seminar No. 4: "Tips for Setting Laser Hardening Conditions" 【Content】 In laser hardening, factors such as output and speed are related to the quality of hardening. We will explain how output and speed are connected to quality factors. This seminar is aimed at those who are looking to start utilizing laser hardening. 1. Company Introduction 2. Relationship between Parameters and Quality 3. Influence of Irradiation Angle 4. Influence of Surface Condition 5. Influence of Plate Thickness 6. Summary 【Recommended for!】 - Those who want to learn about methods for setting laser hardening conditions - Those who want to obtain technical information on laser hardening

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We will introduce examples of laser hardening that prevent distortion and cracking, making it possible to harden precision parts and complex-shaped components. 【Example Lineup】 ■ Laser hardening of chuck jaws ■ Laser hardening of large tapered rolls ■ Laser hardening of truck plate tips ■ Laser hardening of small holders ■ Laser hardening of M2 rack gears ■ Laser hardening of thin-walled V-rings ■ Laser hardening of indexing pins ■ Laser hardening of spiral bevel gear tooth surfaces ■ Laser hardening of thin-walled cam plates ■ Laser hardening of φ600 mold inner diameters

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This document is the PowerPoint material for the technical seminar hosted by our company. 【Seminar Title】 Laser Cladding Technology Seminar, 3rd Session: "What Cannot Be Done with Laser Cladding and Trouble Cases" 【Content】 There are many things that cannot be done even with laser cladding. Under what constraints is this technology not applicable? What kind of design should be considered during the design phase? This seminar addresses these questions. By understanding the negative aspects of laser cladding, more accurate designs can be achieved. 1. Company Introduction 2. Limitations of Laser Cladding 3. Case Studies of Laser Cladding Troubles 4. Summary 【Recommended for the following people!】 - Those who want to obtain negative information about laser cladding - Those who want to understand the realities of laser cladding in the field

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This document is the PowerPoint material for a technical seminar hosted by our company. 【Seminar Title】 Laser Hardening Technology Seminar, 3rd Session: "Case Studies on Solving Laser Hardening Challenges" 【Content】 We will explain specific case studies on how challenges in laser hardening were addressed, detailing the points of difficulty encountered in previous heat treatments and how these were resolved through laser hardening. This seminar will be beneficial for those currently facing issues with heat treatment. 1. Company Introduction 2. Case Studies on Problem Solving 3. Conclusion 【Recommended for!】 - Those who want to learn more about the applications of laser hardening - Those who wish to study the benefits of laser hardening through case examples

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This document is the PowerPoint material for the technical seminar hosted by our company. 【Seminar Title】 Laser Cladding Technology Seminar, Session 1: "Basics of Laser Cladding" 【Content】 The term "laser cladding" may not be very familiar to many. First, we will explain what this technology is. This seminar is aimed at beginners in laser cladding. 1. Company Introduction 2. What is LC? 3. Other Overlay Technologies Besides LC 4. Questions About LC 5. Quality Evaluation in LC Construction 6. LC Parameters 7. Summary 【Recommended for the following people!】 - Those who know very little about laser cladding. - Those who want basic information about laser cladding. - Those who want to know what can be done with laser cladding.

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【Background】 Partially high-frequency hardening of the inner diameter of large rings is challenging due to the difficulty in manufacturing coils. As a result, there are only a limited number of processing companies capable of handling such projects. 【Response from Fuji High Frequency】 Utilizing over 60 years of expertise in high-frequency hardening, we carry out optimal hardening methods and coil manufacturing. For this project, we determined that cooling with air, which poses minimal risk, is the best approach. 【Specifications】 Dimensions: φ1220×φ1037×238W Material: SCM440 Hardness: HRC50 Depth: 2mm

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【Background】 To perform induction hardening on a shaft with an outer diameter of φ940, a high-frequency oscillator with a large output capacity is necessary. This limits the number of companies capable of doing so even within the country. 【Response from Fuji High Frequency】 Using a large high-frequency oscillator of 6KHz×600KW makes it possible to perform induction hardening on large shafts with an outer diameter of φ940. Additionally, since a deep hardened layer is required, the frequency of 6KHz becomes important. 【Specifications】 Dimensions: φ940×850L Material: S45C Hardness: HRC58 Depth: 5mm

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【Conventional Issues】 The final precision required for the gears is not that high, but if high-frequency hardening or carburizing is performed, the precision of the gears deteriorates, necessitating a gear grinding process. 【Advantages of Laser Hardening】 By finishing to the required precision during the gear cutting process and making laser hardening the final step, the degradation of tooth precision has been minimized. As a result, the gear grinding process has been eliminated, leading to reductions in both construction time and costs. 【Specifications】 Dimensions: Φ227×145mm Material: SCM440 Hardness: HRC55 Depth: 0.5mm

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【Conventional Issues】 I want to harden only the groove on the outer circumference, but with conventional heat treatment, it is difficult to harden only the necessary parts, so I had no choice but to perform a full hardening. In that case, the distortion after heat treatment was significant, which was very problematic. 【Advantages of Laser Hardening】 Since it is possible to target only the areas that need to be hardened, unnecessary heat-affected zones can be eliminated, and the distortion after heat treatment can be minimized. 【Specifications】 Dimensions: Φ247×Φ237×T10 Material: SCM440 Hardness: HRC60 Depth: 0.7mm

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【Conventional Problem】 I attempted to drill holes in the plate but accidentally drilled in the wrong position. There are no issues with usage, but having a hole here creates an aesthetic problem. If I remake it, I won't meet the deadline. 【Benefits of Laser Cladding】 Low heat input laser cladding is applied to the hole area. Since it adheres well to S45C, once it is machined, it is completely indistinguishable visually. Considering the cost and deadline of remanufacturing, there are significant advantages. 【Specifications】 Dimensions: 350w × 500L × 20t Filler Powder: SUS316L Base Material: S45C Cladding Thickness: 0.5mm Cladding Area: φ3

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【Conventional Issues】 For center pins used in corrosive environments, Stellite No. 6 was considered to achieve both corrosion resistance and wear resistance, but the material is expensive and difficult to obtain, and it is also hard to machine, resulting in longer processing times. 【Advantages of Laser Cladding】 With laser cladding, we keep Stellite No. 6 in stock, so we can use it only for the tip, allowing for modifications with a lead time of 0 days. Since only the tip is processed, this also leads to a reduction in processing time. 【Specifications】 Dimensions: 400L × φ4 Overlay Powder: Stellite #6 Base Material: SS400 Overlay Thickness: 6mm Overlay Range: φ4

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【Conventional Issues】 The threaded part of the shaft was machined longer than the dimensions specified in the drawing, necessitating the need to flatten the threaded section. However, remanufacturing from scratch would incur significant costs and lead times. 【Benefits of Laser Cladding】 By applying laser cladding only to the threaded part of the shaft, it was possible to machine the threaded section flat. Additionally, the keyway section was repaired without significantly altering its shape, resulting in substantial advantages in terms of lead time and cost. 【Specifications】 Filler Powder: 3.33LOWC Base Material: S45C Cladding Thickness: 1.0mm

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【Conventional Issues】 Repairing by adding material involves either welding or PTA (Plasma Transferred Arc) cladding. However, these methods require adding more than 1mm of excess material relative to the finished dimensions. As a result, additional costs were incurred during post-processing. 【Advantages of Laser Cladding】 By adopting laser cladding for material repair, the post-processing after cladding has been reduced to about 0.5mm, significantly lowering the post-processing costs. Additionally, the deformation of the key groove shape has been minimized. 【Specifications】 Cladding range: φ200×approximately 55mm Base material: SUS316 Cladding powder: SUS316L Cladding height: 1.5mm

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【Conventional Issues】 The nozzles for laser cladding that our company has previously used had a maximum cladding width of 6mm. As a result, it took a long time to perform cladding over large areas. 【Advantages of Wide Laser Cladding】 By utilizing our 12KW high-output semiconductor laser and the wide-compatible cladding nozzle (introduced in March 2020), we have achieved a stable cladding speed that is more than three times faster compared to previous laser cladding (according to our company's comparison). 【Specifications】 Base material: SUS304 Cladding powder: Stellite #6 Cladding width: 16mm Cladding height: 1.5mm

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【Conventional Issues】 In overseas markets, high-speed laser cladding technology is being considered as an alternative to hard chrome plating. It has been very difficult to stably build up a thin film (around 100μm) using conventional laser cladding technology. 【Advantages of Laser Cladding】 By utilizing our high-power semiconductor lasers and clad nozzles, we have achieved stable laser cladding with a build-up thickness of approximately 100μm and a dense microstructure. 【Specifications】 Dimensions: φ20 Base material: SUS304 Cladding powder: Stellite #6 Cladding height: 100μm

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【Conventional Issues】 The gripper pit is a fixture for gripping large steel pipes. I want to harden the serrated part that grips the steel pipe, but there are thin sections that pose a high risk of cracking. 【Response from Fuji High Frequency】 Regarding the serrated part that grips, it is necessary to achieve both a hardened layer depth of over 2mm and hardness, so air cooling during high-frequency quenching was chosen. This way, the risk of cracking can also be avoided. 【Specifications】 Material: SNCM439 Hardness: Hs70 Depth: 2mm

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【Conventional Issues】 High-frequency hardening of large rack gears is difficult to address without the technology for hardening one tooth at a time. Additionally, distortion occurs after high-frequency hardening, so technology for distortion correction is also necessary. 【Response from Fuji High Frequency】 Our company specializes in hardening one tooth at a time, and we can apply this technology to perform high-frequency hardening of large rack gears. Furthermore, we also correct for distortion, ensuring that the final product is shipped with a total length distortion of within 0.1mm. 【Specifications】 Material: S45C Hardness: HRC58 Depth: 2.0mm

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【Background】 In partial quenching of large, specially shaped products, it is necessary to manufacture special-shaped coils to perform high-frequency treatment according to the drawings. Additionally, a large high-frequency quenching machine capable of handling this quenching is also required. 【Fujikou High Frequency's Response】 Our company manufactures coils in-house, so we can produce such special-shaped coils with short lead times and low costs. We also specialize in large products, and if the project can fit within our factory, we can almost always accommodate the quenching. 【Specifications】 Material: S45C Hardness: HRC58 Depth: 3mm

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【Background】 In the high-frequency hardening of a large shaft with an outer diameter of φ150 and a length of L1700, there was a request for a hardened layer depth of 3mm and to minimize distortion as much as possible after hardening. 【Response from Fuji High Frequency】 By using our unique shaft hardening method and applying high-frequency hardening, we achieved both the occurrence of distortion and a deep hardened layer depth. Additionally, this equipment can accommodate vertical hardening up to 4m. 【Specifications】 Material: S45C Hardness: HRC58 Depth: 2mm Size: φ150×L1700

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【Background】 High-frequency hardening of the worm gear section. In the case of single-tooth rotational hardening, it can accommodate not only large modules but also products with long shaft sections. 【Fujikou High Frequency's Response】 We have thousands of coils tailored to various modules, and even if there is no coil that fits the shape, we can quickly make adjustments in-house. 【Specifications】 Size: M12×φ110×L625 Material: SCM435 Hardness: Hs67 Depth: 2.0mm

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【Conventional Issues】 It was a high-frequency hardening project for the V-shaped surface of the ring's outer circumference with a short delivery time. However, due to the special shape of the hardened area, it was necessary to quickly manufacture a coil that matched the V shape. 【Response from Fuji High Frequency】 Since we manufacture coils in-house, we can produce coils and perform hardening within one and a half days. Additionally, using our long-standing expertise in bearing hardening, we can achieve low-distortion hardening through high-frequency moving hardening. 【Specifications】 Material: SUS440C Hardness: HRC55 Depth: 2.0mm or more Size: φ1109×24W

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【Conventional Issues】 When carburizing and quenching, unnecessary parts become hard, making post-processing difficult. Additionally, even when selecting high-frequency single-shot quenching to reduce costs and lead times in heat treatment, significant distortion occurs. 【Response from Fuji High Frequency】 To address these issues, we performed surface hardening of one tooth of the internal gear. By not hardening unnecessary parts, post-processing became easier, and sufficient hardened layer depth was achieved. 【Specifications】 Dimensions: MP8×100W×385L Material: S45C Hardness: Hs65 Depth: Over 2mm

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【Conventional Issues】 More than 90% of the areas that require hardening have chosen high-frequency quenching, but a soft zone of about 10mm inevitably occurs at joints like R. Leaving the soft zone as is may affect the product's lifespan. 【Response from Fuji High Frequency】 The area where the soft zone of about 10mm occurred was hardened using laser quenching. As a result, the risk of quality defects due to the influence of the soft zone in this product has been improved. 【Specifications】 Dimensions: φ540×1960 Material: SCMN439 Hardness: Hs60 Depth: 1.8mm

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【Conventional Issues】 For L-shaped plates with a wide specified hardening width, special coils and high-frequency oscillators with large output capacity are required. Additionally, due to the large area of the L-shape, laser hardening cannot be performed without soft zones. 【Response from Fuji High Frequency】 We have an advantage in terms of delivery time and cost because we manufacture high-frequency hardening coils in-house. Furthermore, we possess high-frequency oscillators with a maximum output of 600KW, allowing us to perform hardening over such large areas without soft zones. 【Specifications】 Material: S45C Hardness: HRC58 Depth: 2.0mm

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【Conventional Issues】 Until now, due to the material being S45C, one-tooth induction hardening was performed, which took about 5 hours for high-frequency heat treatment. To reduce heat treatment costs, a change in material was proposed (S45C ⇒ SCM440). 【Response from Fuji High Frequency】 With our 600KW high-frequency oscillator, it is now possible to perform one-shot hardening down to the tooth base, reducing the heat treatment time from the conventional 5 hours to 0.5 hours, leading to a reduction in heat treatment costs. 【Specifications】 Dimensions: M12 × 60T × 250W × φ720 Material: SCM440 Hardness: Hs60–70

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【Conventional Issues】 We were requested to respond to a very short delivery time for high-frequency hardening of single-unit helical gears. Due to the nature of single-unit helical gears, it was necessary to manufacture coils urgently. 【Response from Fuji High Frequency】 We have thousands of types of coils tailored to various modules, and even if there is no coil that fits the shape, we can quickly make adjustments in-house. We were able to meet the delivery time within one and a half days. 【Specifications】 Dimensions: M18×80T×340W×φ1440 Material: SCM435 Depth: 2.0mm or more at PCD Hardness: Hs65–75

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【Conventional Issues】 Due to the fact that the mold is ultimately split in half, there was a possibility of significant distortion occurring when splitting it after high-frequency hardening. Therefore, a heat treatment method with minimal distortion was necessary. 【Advantages of Laser Hardening】 In laser hardening, hardening is performed in a striped pattern with a hardened width of about 25mm, which divides the hardened areas into individual lines, allowing the stresses from hardening to be distributed overall and reducing distortion. 【Specifications】 Dimensions: L1030×H800×T550 Material: SCM440 Hardness: HRC60 Depth: 1.0mm

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【Conventional Problems】 In high-frequency hardening, when heating the cam section, unnecessary parts of the workpiece are also affected by heat, resulting in significant deformation after heat treatment, making it unusable as a component. 【Benefits of Laser Hardening】 With laser hardening, it is possible to heat only the sliding surface of the cam, resulting in extremely small deformation after heat treatment, which can lead to reduced processing time and steps in subsequent processes. 【Specifications】 Dimensions: Φ247×Φ237×T10 Material: SUJ2 Hardness: HRC63 Depth: 0.5mm

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【Conventional Issues】 When performing high-frequency hardening, a dedicated coil tailored to the shape of the tooth is required. However, it is not feasible to incur the cost of creating an expensive dedicated coil for a single item that only flows a few pieces per year. 【Advantages of Laser Hardening】 With laser hardening, heating can occur as long as the laser beam is focused on the desired area, eliminating the need for the dedicated coil that is essential in high-frequency hardening. Additionally, there is less deformation after heat treatment, and hardening can be performed only on the necessary parts. 【Specifications】 Dimensions: Φ336×T190 Material: SCM435 Hardness: HRC57 Depth: 0.5mm

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【Conventional Issues】 I wanted to harden only the tip while ensuring that the outer diameter of the pin's tip does not bulge. However, with high-frequency hardening, the outer diameter increases because the heating starts from the outer diameter to raise the hardness of the tip. 【Advantages of Laser Hardening】 With laser hardening, the deformation related to the bulging of the outer diameter at the tip was kept within 3μm. Additionally, since laser hardening does not require coils, delivery was possible within 10 minutes after bringing in the item. 【Specifications】 Dimensions: φ15×30L Material: S45C Hardness: HRC60 Depth: 0.5mm

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**Conventional Issues** In high-frequency hardening, the V-shaped surface of the inner diameter within the hardening range becomes over-hardened, resulting in significant distortion after heat treatment and exceeding dimensional tolerances. Although distortion correction was attempted, the risk of cracking was high due to the over-hardened V surface, making correction impossible. **Advantages of Laser Hardening** With laser hardening, it is possible to harden only the surface of the V-shaped area to a high hardness. Additionally, since only the surface is hardened and the interior of the workpiece remains unhardened, the distortion after heat treatment can be kept to a very small level. **Specifications** Dimensions: Φ326×Φ289×T4 Material: S45C Hardness: HRC58 Depth: 0.3mm

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