T/DNCA 001-2019 Right-angle end mill for processing graphite materials

Scope

Scope: This standard specifies the terminology, requirements, inspection, marking, packaging, storage, and transportation of right-angle end mills (hereinafter referred to as "right-angle end mills") used for processing graphite materials. This standard applies to right-angle end mills for processing graphite materials with a diameter of (1~6 mm); Main technical content: - Dimensions and tolerances: The shank diameter of right-angle end mills shall comply with the provisions of Table 1, with a tolerance of H5. - Overall length: The overall length of right-angle end mills shall comply with the provisions of Table 1, with a tolerance of ±0.5 mm. - Effective cutting edge length: The tolerance of the effective cutting edge length of right-angle end mills shall be mm. - Blade diameter tolerance: - When the blade diameter is (1.0~3.0) mm, the tolerance shall be mm. - When the blade diameter is (3.1~6.0) mm, the tolerance shall be mm. - Blade runout: The blade runout of right-angle end mills shall comply with the following requirements: - When L≤50 mm, the blade runout shall not exceed 0.004 mm. - When 50 mm 1700 (HV30). - Appearance: The surface of right-angle end mills shall be free from rust and dirt, and there shall be no chipping or serration on the cutting edge. - Surface roughness: The surface roughness of right-angle end mills shall comply with the following requirements: - The surface roughness of the chip-collecting groove shall be Ra≤0.2 μm. - The surface roughness of the shank shall be Ra≤0.4 μm. - Coating type: The cutting edge of the product shall be coated with a diamond coating that meets the following requirements: - The coating film thickness shall be (10~20) μm. - The hardness s

Development Information

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