Double-groove type indexable cutting blade

Abstract

The invention discloses a double-groove type indexable cutting blade, which is provided with a polygonal blade body. The indexable cutting blade comprises a bottom plane (3), positioning surfaces (2) protruding out of the bottom plane (3) and distributed along the circumference of a center hole (15), and cutting units (4), wherein the positioning surface (2) is close to a vertex angle A of each polygon; each cutting unit (4) is arranged at each vertex angle A of a polygon, and comprises a cutting edge and a chip blocking surface (1). Through reasonably designing the cutting units, the cutting blade has high sharpness and enhanced strength; when the cutting blade is in use, a phenomenon of tipping does not occur easily, the life of the cutting blade is prolonged, and the quality of a cut workpiece is guaranteed. The cutting blade is effectively applied to the semifinishing and roughing of a stainless steel material, the cutting blade is clamped stably, the heat dissipation performance is good, the sharpness and strength of a cutting edge are guaranteed, and the chip curling, chip breaking and chip discharge can be realized perfectly.

Description

technical field [0001] The invention belongs to the field of metal cutting processing, and more specifically relates to an indexable cutting insert with a double-sided groove type. Background technique [0002] The indexable double-sided groove cutting insert is a commonly used cutting insert. With the user's requirements for the surface quality of the workpiece, the repeat positioning accuracy of the indexable cutting insert and the workpiece with uneven blank allowance The requirements for the life of indexable cutting inserts are getting higher and higher. [0003] Due to the high alloy element content of stainless steel and mild steel materials, the cutting force is usually large during turning, and a large amount of heat is generated, and the temperature of the tool rises sharply, which not only reduces the strength of the tool material, but also increases the tool’s mechanical properties. Wear caused by high temperature oxidation. In order to reduce the machining res...

AI Technical Summary

Problems solved by technology

[0005] In the prior art, the structural settings of the indexable double-sided groove cutting inserts used in the processing of stainless steel and mild steel, the correlation between various parameters is not good, the matching is not strong, and it cannot withstand large cutting However, in the process of semi-finishing and rough machining of stainless steel and mild steel materials, the cutting force on the cutting blade increases, and the cutting temperature is too high, which will easily lead to the bonding wear of the cutting blade and the chip, which will cause serious wear of the cutting blade. It affects the surface processing quality of the workpiece. At the same time, chips may also impact the cutting blade, resulting in damage and chipping of the cutting blade. The life of the cutting blade is greatly reduced, which also leads to poor chip breaking effect and affects the surface quality of the processed workpiece. Production efficiency decrease, increase production cost

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