Views: 1 Author: Site Editor Publish Time: 2021-08-18 Origin: Site
Technical requirements of Carbide indexable inserts in China
1. Technical requirements forcarbide indexable inserts with round holes, without holes and countersunk holes
Straightness of the back of the insert, concave inward no more than 0.05mm, convex outward no more than 0.03mm.
The straightness of the blade base, with round hole and no hole blade only allowed to concave inward, its value is not more than 0.05mm; sink hole blade only allowed to concave inward, its value is not more than 0.03mm.
The surface of the blade shall not have defects harmful to the use, and the edge part shall not have fallen off; the non-working part shall not have fallen off by more than 0.3mm.
The main performance and organization of the insert shall conform to the provisions of YB849-75 "carbide grade" or related standards.
Blade section organization should be uniform and consistent, there shall be no defects harmful to the use.
Any newly developed or introduced new material should be higher than YB849-75 standard and conform to the enterprise recommended value.
2. carbide indexable milling cutter blade technical requirements
Inserts base straightness, only allowed to concave inward, A grade is not more than 0.005mm; C grade is not more than 0.01mm; K grade and E grade is not more than 0.02mm.
The surface of the blade shall not have defects harmful to use, and the edge part shall not have fallen off the edge and corner; the non-working part shall not be more than 0.3mm.
The main performance and organization of the insert shall conform to the provisions of YB849-75 "carbide grade" or related standards.
Inserts section organization should be uniform and consistent, there should be no defects harmful to the use.
3. Carbide indexable inserts other common technical skills
All inserts with surface chemical coating (CVD), including turning inserts, milling inserts or other carbide inserts, must be rounded before coating, and the radius of the edge arc γε≤5µm.
If the indexable inserts are not marked with back angle tolerance, the allowable deviation is ±1°; in addition, the allowable deviation is ±0.1mm for tip radius γε≤1.0mm and ±0.15mm for γεr>1.0~2.0mm.
Indexable inserts products, in each insert should be engraved, etched with identifiable features of the logo, features such as: material category or coating code.
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