富士高周波工業 List of Products and Services

【Conventional Issues】 When hardening is performed using high-frequency hardening, it is not possible to harden just one tooth, and the base of the tooth becomes hardened. As a result, cracks occur at the hardened base of the tooth during distortion correction. 【Benefits of Laser Hardening】 With laser hardening, it is possible to target only the surface of the tooth for hardening, which can reduce distortion after heat treatment. Additionally, since the base of the tooth does not harden, cracks at the base can be avoided during distortion correction. 【Specifications】 Dimensions: L1330×H13×T114 Material: SCM440 Hardness: HRC60 Depth: 0.3mm

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【Conventional Issues】 I want to partially harden the R surface of the holder. Additionally, I would like the processing to be done in the shortest possible time. However, due to the need for coils in high-frequency hardening, it is difficult to accommodate short lead times, and there is a risk of cracking near the holes. 【Advantages of Laser Hardening】 With laser hardening, there is no need to manufacture coils, allowing processing to begin immediately after the workpiece arrives. Furthermore, because the hardened layer is shallow, hardening can be performed without the risk of cracking in thin sections or near holes. 【Specifications】 Dimensions: L60×H30×T18 Material: S45C Hardness: HRC58 Depth: 0.5mm

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【Conventional Issues】 When performing surface hardening on the tip using high-frequency hardening, the area near the tip becomes excessively hardened, resulting in significant deformation after heat treatment. Although distortion correction was carried out, it took a considerable amount of time. 【Benefits of Laser Hardening】 With laser hardening, it is possible to harden only the truly necessary parts of the workpiece, avoiding unnecessary thermal effects on the workpiece and minimizing deformation caused by heat treatment. 【Specifications】 Dimensions: L200×H120×T6.15 Material: S50C Hardness: HRC62 Depth: 0.7mm

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【Conventional Issues】 In high-frequency hardening, the difference between the maximum and minimum diameters of the tapered section is large, resulting in a variation in the distance from the coil to the workpiece, making it difficult to heat and cool evenly. This leads to variability in hardness and hardening depth. 【Advantages of Laser Hardening】 In laser hardening, a constant focal distance is maintained through robot teaching, allowing for uniform heating of the heated area. Additionally, since laser hardening does not require cooling water (self-cooling), the hardness and hardening depth can be kept consistent. 【Specifications】 Dimensions: Φ235×L2151 Material: SCM440 Hardness: HRC60 Depth: 0.7mm

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【Conventional Issues】 Previously, commercially available raw claws were used, but they quickly wore out at the sliding parts due to abrasion during opening and closing, necessitating frequent replacements and incurring unnecessary costs. 【Benefits of Laser Hardening】 Even with commercially available raw claws, if the material is suitable for hardening, partial hardening can be performed to harden only the worn parts, thereby extending the lifespan of the components. 【Specifications】 Dimensions: L80×H47×T20 Material: S45C Hardness: HRC58 Depth: 0.5mm

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【Conventional Issues】 In high-frequency hardening, there is a very high risk of cracking occurring at the edge areas on both sides of the convex surface of the inner diameter R, making it difficult to safely harden only the convex surface. Additionally, there are concerns about dimensional changes due to distortion after heat treatment. 【Advantages of Laser Hardening】 Laser hardening allows for localized hardening without risking cracking, even in areas with edges. In this case, there has been almost no distortion after heat treatment following laser hardening. 【Specifications】 Dimensions: L720×Φ618×Φ201 Material: S45C Hardness: HRC58 Depth: 0.6mm

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【Conventional Issues】 When using high-frequency induction hardening, the soft zone (SZ) becomes larger (approximately 10mm). Additionally, when using single-shot hardening, the gap increases in areas with smaller diameters, leading to greater hardness variation. 【Advantages of Laser Hardening】 Laser hardening can achieve hardening with an SZ of approximately 1.5mm (in this case, the SZ is in the circumferential direction). With a smaller SZ, durability is improved. Furthermore, since hardening is done line by line, there is no hardness variation. 【Specifications】 Dimensions: φ500×T297 Material: SCM440 Depth: 0.5–1.0mm Hardness: HRC60

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【Conventional Issues】 Due to the thin thickness of approximately 6mm in the hardening area, there are concerns about deformation after heat treatment with high-frequency hardening. Additionally, the threaded section at the tip of the shaft should not be hardened, but hardening is desired up to the vicinity of the threaded area. 【Benefits of Laser Hardening】 By performing hardening in a spiral pattern, it is possible to disperse the stresses caused by hardening and reduce deformation after heat treatment. Furthermore, the hardened areas bulge a few micrometers above the work surface, exhibiting effects similar to full hardening in terms of wear resistance due to surface contact. 【Specifications】 Material: SCM435 Hardness: HRC50 Depth: 0.4mm

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【Conventional Issues】 In high-frequency hardening, there is a high risk of cracking in the areas directly beneath the hardened surface (thin sections). Additionally, the thin sections may become overly hardened, increasing the likelihood of cracks during distortion correction. 【Advantages of Laser Hardening】 With laser hardening, it is possible to achieve a hardening depth of 0.6mm, which allows for the avoidance of cracking risks even in thin sections. Furthermore, since the hole areas do not become overly hardened, distortion correction becomes easier. 【Specifications】 Dimensions: 32w × 318L × 9t Material: S45C Hardness: HRC58 Depth: 0.6mm

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【Conventional Issues】 This project involves a special shape, so it is necessary to manufacture a dedicated coil for high-frequency hardening, which incurs additional production costs and time. Additionally, there is a risk of cracks in the thin-walled areas on both sides. 【Advantages of Laser Hardening】 Laser hardening does not require coils, allowing for implementation without incurring production costs and time. Furthermore, the thin-walled areas on both sides can be hardened without causing cracks. 【Specifications】 Material: S45C Hardness: HRC58 Depth: 0.5mm

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【Conventional Issues】 In high-frequency hardening, it was difficult to harden only the groove parts that required hardening, so the entire outer circumference had to be hardened. As a result, dimensional changes occurred in the outer and inner diameters, necessitating post-processing after hardening. 【Advantages of Laser Hardening】 Laser hardening can heat only the V-groove parts that require hardening with pinpoint accuracy. Therefore, it reduced the finishing processes due to swelling of the outer diameter and shrinkage of the inner diameter after heat treatment. 【Specifications】 Material: S45C Hardness: HRC60 Depth: 0.7mm

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**Conventional Issues** When high-frequency hardening is applied to the cam surface, significant distortion occurs due to its thinness. Additionally, the inner diameter with the keyway also undergoes dimensional changes, necessitating finishing work after hardening. **Benefits of Laser Hardening** By laser hardening only the cam surface, distortion of the cam surface can be reduced. Furthermore, there is no thermal impact on the inner diameter, eliminating the need for finishing work, which leads to a reduction in processing time. **Specifications** Material: SCM440 Hardness: HRC55 Depth: 0.3mm

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Currently, we are presenting a collection of four volumes titled "Laser Hardening Case Studies," created based on examples of problem-solving we have handled so far. Our company utilizes extensive know-how and equipment related to laser hardening to support solutions for issues concerning heat treatment, such as distortion and cracking. We are equipped to handle various projects, including hardening of precision parts and complex-shaped components, covering everything from small-batch production to mass production and prototype development. 【Contents of the Case Studies (10 cases included in each volume)】 ■ Vol.01–10: M1 gear single tooth laser hardening, eyebrow piston A laser hardening, etc. ■ Vol.11–20: Complex-shaped block laser hardening, rotating shaft laser hardening, etc. ■ Vol.21–30: Ring V-groove laser hardening, cutter cam laser hardening, etc. ■ Vol.31–40: Chuck raw jaw laser hardening, large taper roll laser hardening, etc. *You can view detailed content immediately via "PDF Download." Please feel free to contact us with any inquiries regarding our technologies.

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【Conventional Issues】 In carburizing hardening, unnecessary areas become hardened, leading to increased distortion. Additionally, the hole and key groove areas are thin, which poses a risk of cracking after hardening. 【Benefits of Laser Hardening】 With laser hardening, partial hardening of the cam surface can minimize distortion. Furthermore, since it does not affect the heat of the hole and key groove areas, the risk of cracking is also avoided. 【Specifications】 Material: S45C Hardness: Hs72-80 Depth: 0.8UP

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【Conventional Issues】 With high-frequency hardening, it is difficult to harden only the edge surface of the protruding part without affecting other areas with heat. The heat influence on other parts can lead to distortion, making post-processing likely necessary. 【Advantages of Laser Hardening】 With laser hardening, it is possible to precisely target and harden only the edge surface of the protruding part. Since there was almost no heat influence on unnecessary areas, there were no issues with distortion after heat treatment. 【Specifications】 Material: S45C Hardness: HRC 45 or higher Depth: 0.7mm

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【Conventional Issues】 I wanted to harden only the tip of the knurl, but with high-frequency hardening, the entire surface becomes hardened, causing overall distortion. Additionally, due to processing considerations, areas with thinner wall thickness are at risk of melting due to edge effects. 【Advantages of Laser Hardening】 By hardening only the tip that comes into contact with the counterpart, distortion caused by heat treatment was minimized. Furthermore, with laser hardening, distortion correction hardening can be performed on the backside, further reducing distortion. 【Specifications】 Material: S45C Hardness: HRC 55-57 Depth: 0.5-0.8 mm

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【Conventional Issues】 High-frequency hardening is possible, but if back surface hardening is performed for distortion correction, the surface will be tempered due to heat influence, resulting in a loss of hardness. Therefore, there were high costs associated with distortion correction for products that were significantly warped after hardening on one side only. 【Advantages of Laser Hardening】 By adopting laser hardening, it became possible to perform back surface hardening for distortion correction even on plates with a thickness of 10t, significantly reducing the labor involved in distortion correction. The amount of distortion after hardening was also reduced to within 0.2mm across the entire length. 【Specifications】 Dimensions: L1200×W80×10t Material: S50C Hardness: HRC60 Depth: 0.5 to 1.0mm

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【Conventional Issues】 Due to skipping the hardening process, the necessary areas were not hardened and were instead polished. High-frequency hardening was considered, but the risk of distortion due to significant heat impact was concerning. 【Advantages of Laser Hardening】 By performing laser hardening only on the necessary areas, it was processed with minimal distortion. The outer diameter dimension increased by 0.01mm before and after hardening, but the overall distortion was "zero." 【Specifications】 Material: S45C Depth: 0.3mm Hardness: HRC60

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【Conventional Issues】 In high-frequency hardening, it is difficult to manufacture coils that only harden the inner surface of the □9.6mm section, and due to thermal effects, unnecessary areas become hardened, leading to distortion after heat treatment. 【Advantages of Laser Hardening】 With laser hardening, the manufacturing of coils is no longer necessary. Additionally, by precisely hardening only the inner surface of the □9.6mm section, distortion after heat treatment is almost nonexistent. 【Specifications】 Dimensions: □9.6mm section Material: SCM440 Hardness: HRC58 Depth of hardened layer: 0.3mm

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【Conventional Issues】 In the rotating induction hardening of high-frequency hardening, a soft zone (approximately 10mm) occurs at the start and end positions. As a result, the soft zone wears out, leading to reduced lifespan and abnormal noise. 【Benefits of Laser Hardening】 With laser hardening, the soft zone created by high-frequency hardening has been filled. By reducing the soft zone to approximately 1.5mm, wear during use has been prevented, overcoming issues related to product lifespan and abnormal noise. 【Specifications】 Product Name: Ring Material: S45C Hardness: HRC60 Soft Zone after High-Frequency Hardening 10mm ⇓ After Laser Hardening 1.5mm *Patent Obtained 【Patent Application 2017-036507 Method for Surface Hardening Steel Parts】

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【Conventional Issues】 In conventional heat treatment methods, there was no means to locally harden a small-diameter (φ8) and thin-walled key groove without affecting the threaded section. *If the threaded section is hardened, there is a high risk of cracking. 【Benefits of Laser Hardening】 Laser hardening achieves ideal hardening by minimizing thermal impact on other areas and hardening only the key groove section. (Moving hardening) 【Specifications】 Material: SCM445 Depth: 0.5mm UP Hardness: HRC60

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【Conventional Issues】 With conventional high-frequency hardening, while the heat treatment cost is reduced, the thermal impact becomes significant, causing distortion in the inner diameter, which necessitates secondary processing (finishing). 【Advantages of Laser Hardening】 With laser hardening, the heat treatment cost has become “one-shot hardening < laser hardening,” and since secondary processing of the inner diameter can be reduced, the overall cost is lower and the project timeline is shortened with laser hardening. 【Specifications】 Dimensions: φ596×22W×M4×147T Material: S45C Depth: 0.5mm Hardness: HRC57 or higher

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【Conventional Issues】 Hardening of the sides and end faces is necessary, but due to the numerous hole and groove machining in the areas that require hardening, the difficulty of hardening increases with high-frequency quenching, raising the risk of cracking. 【Advantages of Laser Hardening】 With laser hardening, the grooves can be hardened by allowing light to escape, eliminating the risk of cracking. Additionally, for the holes, there is no edge effect like with high-frequency, so there is no risk of overheating. 【Specifications】 Dimensions: φ280×L780 Material: SCM440 Depth: 1.0–1.5mm Hardness: HRC50–56

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[Experimental Method] In a laser hardening process with a width of 100mm, we investigated the differences that appear when S50C and SCM440 are hardened under the same conditions. Laser hardening was performed on a workpiece measuring 250mm × 150mm × 20mm under the same conditions, and after cutting the central part, the depth of the hardened layer was examined.

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【Conventional Issues】 In conventional high-frequency hardening, there were three challenges: (1) the risk of cracks, (2) the narrowing of the key groove width, and (3) the hardening of the screw section. As a result, extra material had to be removed, leading to increased costs in post-processing. 【Advantages of Laser Hardening】 By adopting laser hardening, which allows for precise hardening of only the targeted areas, the issues (1) to (3) were resolved, resulting in a reduction in post-processing costs after hardening. 【Specifications】 Dimensions: φ30×L538 Material: S45C Depth: 0.3–0.8mm Hardness: HRC55 or higher

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【Conventional Issues】 There are three hardening surfaces on a single block, and they are very close to each other. As a result, during high-frequency hardening, the heat impact from hardening (2) and (3) after hardening (1) causes (1) to be tempered. 【Advantages of Laser Hardening】 Laser hardening is characterized by its ability to perform pinpoint hardening, which minimizes the thermal impact on the surrounding areas at each location. Therefore, there is no risk of tempering. 【Specifications】 Material: S45C Depth: 0.4–0.8mm Hardness: HRC55–57

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【Conventional Issues】 Previously, nitriding was performed on the cam surface, but the nitrided layer would quickly wear away in areas that were prone to load, leading to localized abnormal wear and a shorter lifespan. 【Benefits of Laser Hardening】 By performing laser hardening only on the areas with severe wear, the hardened layer becomes deeper (approximately 0.5mm), which helps to suppress the occurrence of abnormal wear and contributes to an increase in product lifespan. 【Specifications】 Dimensions: φ56 L=1054 Material: S45C Depth: 0.5mm Hardness: HRC60

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【Conventional Issues】 In high-frequency induction hardening, the soft zone forms a triangular shape (red dashed line) and reaches approximately 30mm at its widest point. As a result, the durability at the position of the soft zone decreases. Additionally, distortion in thin sections is also a concern. 【Advantages of Laser Hardening】 In laser hardening, the soft zone is reduced to 1.5mm, resolving issues related to abnormal wear in the soft zone. Furthermore, distortion in thin sections is limited to within 0.1mm. 【Specifications】 Material: SCM435 Depth: 0.3–0.5mm Hardness: HRC55

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【Conventional Issues】 Traditionally, vacuum hardening was performed using SKD11 (approximately 500 yen/kg), which took a minimum of one day. 【Advantages of Laser Hardening】 In the case of laser hardening, it is possible to switch to S45C (approximately 150 yen/kg), achieving a reduction in material costs and a shorter delivery time (about 10 minutes). 【Specifications】 Dimensions: W30×L50×T15 Material: S45C Depth: 0.5–1.0mm Hardness: HRC60

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【Conventional Issues】 This product is designed for small-batch production with a variety of types, and the hardened surface has an R shape, which typically requires the fabrication of coils for standard high-frequency hardening. (Fabrication cost: 100,000 yen; Fabrication time: 3 days) 【Advantages of Laser Hardening】 By switching to laser hardening, the need for coil fabrication is eliminated even in small-batch production, resulting in reduced fabrication costs and time. As a result, the manufacturing cost of the components has significantly decreased. 【Specifications】 Material: S45C Depth: 0.5mm or more Hardness: HRC58-60

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【Conventional Issues】 The outer circumference of the shaft was subjected to high-frequency hardening, but to prevent cracking, the keyway area was thermally relieved with a copper jig and not hardened. However, according to product specifications, hardening of the bottom of the keyway was also necessary. 【Advantages of Laser Hardening】 The outer circumference of the shaft undergoes hardening over a larger area, making high-frequency hardening more cost-effective. Therefore, high-frequency hardening was chosen, while laser hardening is considered safer for the bottom of the keyway. 【Specifications】 Dimensions: φ80×1229 Material: S45C Depth: 0.5–1.0mm Hardness: Hs70 or higher

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【Conventional Concerns】 There is a worry about distortion when wanting to case-harden the gear (finished product) from the catalog. There is also a concern that high-frequency hardening may result in the tooth's precision falling outside of JIS standards. 【Advantages of Laser Hardening】 Since only the tooth surface is locally hardened, it can minimize distortion after heat treatment. The precision of the teeth after heat treatment can also be kept within JIS standards. 【Specifications】 Material: S45C Depth: 0.3–0.5mm Hardness: HRC50–60

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【Conventional Issues】 One of the disadvantages of laser hardening is that it cannot perform hardening over a wide width, requiring multiple lines to be scanned for hardening a large area, which has been a factor in increasing the cost of laser hardening. 【Advantages of Laser Hardening】 By utilizing a 12KW semiconductor laser and an optical system with a maximum width of 100mm (introduced in March 2020), it has become possible to perform laser hardening with a width of 100mm. Therefore, this leads to a reduction in the cost of laser hardening and a shortening of delivery times. 【Specifications】 Material: S45C Hardening layer depth: 0.86mm

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【Conventional Issues】 When hardening fan-shaped plates with high-frequency hardening, there are two main concerns: (1) There is a possibility of cracks occurring in the large holes near the outer diameter. (2) It is difficult to remove distortion. 【Advantages of Laser Hardening】 With laser hardening, there is no risk of cracks forming near the holes close to the outer diameter due to self-cooling. Additionally, by hardening both sides evenly, distortion can be reduced to less than 0.1mm. 【Specifications】 Dimensions: R405×W275×T25 Material: S45C Depth: 0.5mm or more Hardness: HRC52 or more

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【Conventional Issues】 - Coils are required for both the R part and the flat part, resulting in unnecessary time and costs. - Distortion after heat treatment leads to longer processing times even in post-processing. 【Benefits of Laser Hardening】 - No coils are needed for hardening, allowing for simultaneous reduction in lead time and costs. - Low-distortion hardening enables a reduction in post-processing steps. 【Specifications】 Dimensions: L1007×W310×T157 Material: S35C Depth: 0.5–1.0mm Hardness: HRC40 or higher

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Laser cladding is a technology for adding material with minimal distortion. It is also true that it has not yet become widespread in the Japanese market. Are there ways to reduce distortion during the material addition process? Is it possible to achieve this at a lower cost? Can we reduce the amount of rare metals used? If there are challenges with the current material addition technology, there are proposals that can be made with laser cladding. 【Laser Cladding System】 - Number of units: 3 (300W to 12,000W) - Compatible sizes: Up to 1,000kg, up to φ2,000, up to L4,000mm - Handling lots: From 1 to 1,000 units/month

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【Conventional Issues】 - Due to the thin wall (thickness: 6mm), the entire workpiece becomes distorted at high frequencies and is unusable. - Because the module is small (M1), it was not possible to suppress distortion with single tooth hardening. 【Advantages of Laser Hardening】 - Localized heating and cooling allows for low-distortion hardening even for thin-walled products. - The ability to precisely target the required hardening area enables single tooth hardening for M1. 【Specifications】 Material: S45C Depth: At least two-thirds of the tooth height Hardness: HRC 55 or higher

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The laser hardening business started in December 2008. This technology can significantly contribute to reducing the biggest challenge in heat treatment processing, known as "heat treatment distortion." Our engineers respond meticulously to a wide range of needs, from small-batch, diverse products to mass-produced items and prototype developments, ensuring customer satisfaction. 【Laser Hardening System】 - Number of units: 6 units (1Kw to 12Kw) - Supported sizes: Up to 3,000kg, up to φ3,000, up to L5,000mm - Supported lots: From 1 to 100,000 pieces per month

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Since our establishment in 1956, we have accumulated high-frequency technology. We manufacture coils in-house even for complex shapes, responding with short lead times and low costs. We possess a variety of outputs and frequency ranges from low frequency to high frequency, accommodating everything from small-batch, diverse products to mass production. We offer optimal partial hardening solutions for our customers using two partial hardening technologies: high-frequency hardening and laser hardening. 【High-Frequency Hardening Equipment】 - Number of units: 10 units, 50Kw to 600Kw, 6 to 200KHz - Usable size: up to 5,000kg, up to φ6,000, up to L6,000mm - Production lot: 1 to 200,000 pieces/month

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We have compiled the know-how we have cultivated into a technical report and explained it clearly in seminars. 【Content of the Laser Hardening Seminar】 Session 1: Basics of Laser Hardening Session 2: Seven Differences Between Laser Hardening and High-Frequency Hardening Session 3: Case Studies for Solving Laser Hardening Challenges Session 4: Tips for Setting Laser Hardening Conditions Session 5: What Cannot Be Done with Laser Hardening and Trouble Cases Session 6: Fuji High-Frequency Laser Hardening Equipment Session 7: Hardening Data by Material for Laser Hardening Session 8: Frequently Asked Questions about Laser Hardening 【Content of the Laser Cladding Seminar】 Session 1: Basics of Laser Cladding Session 2: Applications of Laser Cladding Session 3: What Cannot Be Done with Laser Cladding and Trouble Cases Session 4: Fuji High-Frequency Industrial Laser Cladding Equipment Session 5: Data by Material for Laser Cladding Session 6: Frequently Asked Questions about Laser Cladding ★ You can apply for the seminar from "Click here to apply." If you wish to view archived videos, please feel free to contact us.

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We will introduce examples of laser hardening that prevents distortion and cracking, making it possible to harden precision parts and complex-shaped components. 【Example Lineup】 ■ M1 Gear One Tooth One Shot Laser Hardening ■ Eyebrow Type Piston A Laser Hardening ■ Fan-Shaped Plate Laser Hardening ■ 100mm Width Laser Hardening ■ M1.5 Small Gear Tooth Surface Movement Laser Hardening ■ High-Frequency Hardened Shaft Key Groove Bottom Surface Laser Hardening ■ Roller Sliding Surface Laser Hardening ■ Small Punching Die Laser Hardening ■ Thin-Walled Roller Laser Hardening ■ Scroll Cam 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 complex-shaped blocks ■ Laser hardening of rotating shafts ■ Differences in hardenability due to material variations ■ Laser hardening of spindles ■ Laser hardening of ring gears ■ Laser hardening of key grooves in small-diameter ball screws ■ Measures against soft zones using laser hardening ■ Laser hardening of head wrench mounting parts ■ Laser hardening of piston shafts ■ Laser hardening of L1200×10t plates

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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 knurled surfaces ■ Laser hardening of convex end faces ■ Laser hardening of ring V grooves ■ Laser hardening of cutter cams ■ Laser hardening of small rollers ■ Laser hardening of stopper tips ■ Laser hardening of rails with small diameter holes ■ Laser hardening of thin-walled hollow bolt spirals ■ Laser hardening of taper cone outer peripheries ■ Laser hardening of clamp die inner diameter R surfaces

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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 dish cams ■ Laser hardening of φ600 mold inner diameters

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We will introduce examples of laser cladding, which uses a laser as a heat source to melt powders or wires and build up or coat the surface of a substrate with the same or different materials. 【Example Lineup】 ■ High-speed laser cladding ■ Wide laser cladding ■ Laser cladding for shafts with keyways ■ Repair laser cladding for shafts with keyways ■ Repair of center pin laser cladding ■ Repair of drill hole laser cladding

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