Semi-finishing turning insert of stainless steel material
By optimizing the structural design of semi-finish turning inserts for stainless steel materials, the problems of chip sticking and entanglement have been solved, resulting in smooth cutting and low cutting resistance, improving machining life and surface quality. It is suitable for semi-finish turning and finish turning of stainless steel and non-ferrous metals.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU GERUN HI TECH MATERIALS
- Filing Date
- 2025-03-05
- Publication Date
- 2026-07-17
AI Technical Summary
During the semi-finishing of stainless steel or non-ferrous metals, chips tend to stick to the cutting tool, causing damage to the cutting edge of the tool and scratches on the workpiece surface. At the same time, chip entanglement occurs frequently, affecting machining quality and efficiency.
A semi-finishing turning insert made of stainless steel was designed, comprising a central mounting and positioning hole, a chip breaker groove, and chip control bumps. By optimizing the cutting edge and groove profile, stable chip curling and low friction are achieved. It is suitable for feed rates of 0.08mm/r≤Fr≤0.25mm/r and depth of cut of 0.5mm≤ap≤2.5mm, covering more than 90% of enterprise machining needs.
It effectively reduces friction between chips and cutting tools, ensures stable chip curling, improves machining life and workpiece surface quality, and is suitable for semi-finishing and finishing turning of stainless steel and non-ferrous metals, covering a wide range of machining needs.
Smart Images
Figure CN224508465U_ABST
Abstract
Claims
1. A semi-finishing turning insert of stainless steel material, characterized by: The cutting blade body (1) is provided with a mounting positioning through hole (11) in the center position, two end faces of the cutting blade body (1) are respectively an installation plane (12) and a groove-shaped profile (13), a main cutting blade mounting platform (2) is arranged around the center mounting positioning through hole (11) at the groove-shaped profile, the main cutting blade mounting platform (2) and a cutting edge (14) jointly constitute a chip breaking groove (15), a sub-cutting blade mounting platform (3) extending to the body corner of the cutting blade body (1) is arranged in the middle of the chip breaking groove (15), and a chip control convex point (4) is further arranged between the tail end of the sub-cutting blade mounting platform (3) and the body corner of the cutting blade body (1).
2. The semi-finishing turnig insert of stainless steel material according to claim 1, characterized in that: The included angle between the main cutting edge of the cutting blade body (1) and the horizontal plane is a, the value of a is between 4° and 6°; the horizontal distance from the intersection point of the main cutting edge and the nose circle edge to the intersection point of the main cutting edge and the transition edge is L, the value of L is between 3.2 mm and 3.6 mm, the included angle between the transition edge of the cutting blade body and the horizontal plane is b, and the value of b is between 14° and 16°.
3. The semi-finishing turnig insert of stainless steel material according to claim 1, characterized in that: The rib width of the cutting blade body (1) is B, and the value of B is between 0.05 mm and 0.07 mm.
4. The semi-finishing turnig insert of stainless steel material according to claim 1, characterized in that: The included angle between the rake face of the cutting blade body (1) and the installation plane is c, and the value of c is between 19° and 21°.
5. The semi-finishing turnig insert of stainless steel material according to claim 1, characterized in that: The included angle between the groove bottom face of the cutting blade body (1) and the installation plane is d, and the value of d is between 1° and 3°.
6. The semi-finishing turnig insert of stainless steel material according to claim 1, characterized in that: The horizontal distance value between the intersection point of the groove bottom face of the cutting blade body (1) and the rake face and the nose circle edge is B2, and the value of B2 is between 0.1 mm and 0.13 mm.
7. The semi-finishing turnig insert of stainless steel material according to claim 1, characterized in that: The vertical distance from the intersection point of the return chip face of the cutting blade body (1) and the groove bottom face to the highest point of the nose circle edge is B1, and the value of B1 is between 0.7 mm and 0.75 mm.
8. The semi-finishing turnig insert of stainless steel material according to claim 1, characterized in that: The vertical distance value between the highest point of the boss of the cutting blade body (1) and the installation plane is between 0.09 mm and 0.12 mm.