Introduction of carbide insert grade for stainless steel turning

This article summarizes the production practice of turning stainless steel, according to different types of stainless steel processing characteristics, the proposed selection of turning stainless steel and stainless steel surfacing materials are summarized as follows:

First, the turning Austenitic stainless steel blade grades: austenitic stainless steel cutting striped chip continuously, broken chips difficult, and easy to produce hardening, hardening layer to the next cutting to bring great difficulty, so that the blade Abrupt wear, so in the cutting, try to use a larger depth of cutting; carbide insert grade EY352 and EJ super-hard blade can be competent. To treat 1Cr18Ni9Ti austenitic stainless steel, for example, should absolutely avoid the use of YT-type cemented carbide, because the stainless steel titanium (Ti) and YT-based carbide in the affinity of Ti, the chip is easy to alloy Ti belt Walking, to promote the blade wear and tear intensified.

Second, the turning of ferritic stainless steel blade grades: Selection of EY301 and YW2 brand blade processing of ferritic stainless steel has a better processing effect.

Three, turning martensitic stainless steel blade grades, because the martensitic stainless steel in the cutting is easy to produce BUE, and the chip is difficult, the workpiece has been processed surface quality is low; using EY312, and the blade grinding a smaller angle And broken groove, so that the blade toughness and chip breaking performance better, you can achieve very good results. When processing hardened martensitic stainless steel (≥ 45HRC), the choice of BN-S20 grade superhard tool most suitable, for example, with super hard grade cutting martensitic high chromium stainless steel or processing precipitation hardening martensitic stainless steel 630 grade (corresponding Chinese grade 0Cr17Ni4Cu4Nb, 05Cr17Ni4Cu4Nb), 410 grade, 420 grade, 440 grades.

 Fourth, the other by the stainless steel welding rod welding or surfacing of the workpiece, the processing of high hardness chromium-based, nickel-based stainless steel cladding suitable for superhard blade grade.