Thread cutting insert for thread turning processing and external thread component manufacturing method
A technology for cutting inserts and cutting threads, applied in thread cutting tools, manufacturing tools, metal processing equipment, etc., can solve the problems of insufficient size and damage to the precision of the machined surface, and achieve the improvement of cutting edge strength and cutting edge strength. Effect
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[0044] refer to Figure 1 to Figure 5 An embodiment example in which the cutting insert for thread cutting in thread turning machining according to the present invention is embodied will be described. Among them, such as Figure 5 As shown, for the cutting insert (non-regrinding cutting insert) 10 of this example, the thread (thread thread) to be formed is a triangular thread with a slightly flat top (top) (the angle of the thread thread is 40 degrees) , the threaded thread 105 is left-right symmetrical on a section passing through the axis Gn of the shaft member 100 (left-right symmetrical with respect to the central axis Yc in the width direction of the threaded thread 105), and the cutting insert 10 is used to process a thread by one feed The groove is trapezoidal and the width in the lead direction is larger than the two threads of the thread teeth. Therefore, if figure 1 , figure 2 As shown, the shape (cutting edge shape) of the cutting insert 10 when viewing the cu...
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