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[Examples of Production by Purpose] Core Pin (Tip 0.4×0.4)

[Examples of Production by Purpose] Core Pin (Tip 0.4×0.4)

The tip is only 0.4 millimeters square in size! It has a stepped precision of ±0.003.

This is an example of a part called a core pin used in the molding of connectors. During the molding of connector components, this pin is inserted into the mold for shaping, and even such fine pins are designed with materials that can withstand repeated use. This core pin is actually used at a length of about 6 millimeters from the tip, and the root's shape is designed to accommodate the profile processing grinding wheel. By using a smaller diameter grinding wheel, the R size of the shape can be minimized, allowing for the precision machining of such fine pins through grinding. The tip is only 0.4 millimeters square, yet it has a precision of ±0.003 and features a step, showcasing the strengths of profile processing. 【Manufacturing Example】 ■Material: HAP10 (Powdered High-Speed Tool Steel) ■Product Size: 4×4×53 *For more details, please refer to the PDF document or feel free to contact us.

  • Contract manufacturing
  • Processing Contract

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[Case Studies by Application] Ultra-Hard Ejector Pins

[Case Studies by Application] Ultra-Hard Ejector Pins

We have various grinding machines! We respond with grinding methods suitable for the shape and material.

This is a case of an ejection pin designed to eject resin-molded products from a mold, made of ultra-hard alloy to withstand wear even after being used repeatedly over tens of thousands of times. The outer diameter dimension tolerance is specified as ±2μm, but due to the large length relative to the diameter, such grinding processes can lead to the item escaping and make it difficult to achieve concentricity. There are also stringent requirements for geometric tolerances such as straightness tolerance. Our company possesses various grinding machines and responds with grinding methods suited to the shape and material. [Production Example] - Material: General wear-resistant carbide - Product Size: φ3.6×L75 *For more details, please refer to the PDF document or feel free to contact us.

  • Contract manufacturing
  • Processing Contract

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[Examples of Production by Purpose] Multi-stage Pins with Enhanced Accuracy

[Examples of Production by Purpose] Multi-stage Pins with Enhanced Accuracy

A multi-stage pin with a geometric tolerance of 0.01 for core runout! The adopted tolerance range is 0.01mm.

This is a multi-stage pin with a general CN-X coating (Matsuyama Giken Co., Ltd.). It is a multi-stage pin with a geometric tolerance of 0.01 for core runout, and the adopted tolerance range is 0.01mm. For such components, skilled cylindrical grinding techniques are required. The selection of grinding wheels and the management of the tips of the grinding wheels determine the precision of this component. Especially for parts that undergo PVD coating, the surface condition before coating affects the adhesion (lifespan) of the coating film. 【Production Example】 ■Material: General wear-resistant carbide (CN-X coating) ■Product Size: φ15×L96 *For more details, please refer to the PDF document or feel free to contact us.

  • Contract manufacturing
  • Processing Contract

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