Cutter device for turning notch sample

By designing a turning tool device for notched specimens, using indexable inserts and CNC external turning tool holders, and combining PCD composite materials, the efficiency and consistency issues in notching metal rod specimens were solved, achieving high-precision, defect-free notch preparation.

CN224444623UActive Publication Date: 2026-07-03GUOBIAO BEIJING TESTING & CERTIFICATION CO LTD
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Patent Information

Application Number
CN202521488496.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-16
Publication Date
2026-07-03
Estimated Expiration
2035-07-16

AI Technical Summary

Technical Problem

Existing technologies for notching metal rod-shaped specimens suffer from problems such as long processing cycles, high equipment dependence, poor processing consistency, and numerous surface defects, making it difficult to meet the needs of preparing multiple types of small-batch specimens.

Method used

Design a turning tool device for notched specimens, which uses indexable inserts and CNC external turning tool holders, combined with PCD composite material, to achieve precise machining of notches through reasonable insert geometry and mounting structure.

Benefits of technology

It enables rapid and stable processing of notched specimens, improves preparation efficiency and surface quality, adapts to the needs of multiple batches, and ensures the accuracy and consistency of mechanical property testing.

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Abstract

The utility model provides a notch sample turning cutter device which comprises an indexable blade, a cutter bar and a screw, and the indexable blade is fixedly connected with the cutter bar through the screw. The cutter bar is a numerical control cylindrical turning tool straight-head cutter bar, a blade mounting groove with a rhombic section is formed in the head of the cutter bar, and a threaded hole matched with the screw is formed in the center of the blade mounting groove; a central through hole coaxial with the threaded hole is formed in the middle of the indexable blade, and a screw penetrates through the blade and is screwed into the cutter bar, so that the blade can be replaced and fixed.
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