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Quenching×富士高周波工業 - メーカー・企業と製品の一覧

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Cutter cam laser hardening case study

Cutter cam laser hardening case study

No finishing process with laser hardening! Labor hours can be reduced!

**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

  • Processing Contract

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Case study of small roller laser hardening

Case study of small roller laser hardening

Only the V-groove part is heated precisely!

【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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Case of stopper tip laser hardening

Case of stopper tip laser hardening

Avoiding cracks in thin sections with laser hardening!

【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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Tapered cone outer circumference laser hardening case study

Tapered cone outer circumference laser hardening case study

Large items can also be laser hardened!

【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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Laser hardening of the inner diameter R surface of a clamp die - Case Study

Laser hardening of the inner diameter R surface of a clamp die - Case Study

We will perform laser hardening line by line!

【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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Chuck raw nail laser hardening case study

Chuck raw nail laser hardening case study

Harden only the worn parts to extend the lifespan of the components!

【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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Case study of laser hardening at the tip of a track plate.

Case study of laser hardening at the tip of a track plate.

It looks easy, but it's difficult. The laser bends in the middle!

【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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Thin Meat V Ring Laser Hardening Case Study

Thin Meat V Ring Laser Hardening Case Study

High-hardness laser hardening can be done quickly!

**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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Case of cut pin laser hardening

Case of cut pin laser hardening

We were able to deliver it 10 minutes after arrival!

【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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Case study of high-frequency hardening of L-shaped plates.

Case study of high-frequency hardening of L-shaped plates.

Achieve short delivery times with a high-frequency oscillator featuring special coils and high-capacity output!

【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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Case of high-frequency hardening of a warm axis one tooth rotation.

Case of high-frequency hardening of a warm axis one tooth rotation.

We have thousands of types of coils tailored to various modules!

【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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Case study of rack gear high-frequency hardening

Case study of rack gear high-frequency hardening

We can perform high-frequency hardening of super-large rack gears!

【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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Case study of high-frequency quenching with gripper pit.

Case study of high-frequency quenching with gripper pit.

The jagged parts will be hardened with high-frequency quenching!

【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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M10 Gear Tooth Surface Laser Hardening Case Study

M10 Gear Tooth Surface Laser Hardening Case Study

Reduce construction time and costs with laser hardening!

【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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Large Ring Groove High-Frequency Hardening Case Study

Large Ring Groove High-Frequency Hardening Case Study

With over 60 years of expertise in high-frequency hardening, we can also handle the production of difficult coils!

【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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