A multi-hardness splicing hardened steel concave surface test piece and the processing technology of the concave model surface

Abstract

Provided is a stitching quenched steel concave-curve-surface test piece having multiple hardnesses and machining technology of a die molded surface, relating to machining technology for a milling cutter test piece and a milling cutter die molded surface with the purpose of solving the problem that cutting performance of a ball-end milling cutter becomes poor and cannot satisfy the requirement for machining quality of the die molded surface due to the unreasonable technical scheme for high-speed milling technology of a covering part die of a car inside board is not reasonable. The stitching quenched steel concave-curve-surface test piece comprises a first part, a second part, a third part, a four part, a fifth part and a sixth part. Upper surfaces of the first part, the second part, the third part, the four part, the fifth part and the sixth part are combined into a square machining area having a concave curve surface. The upper surface of the machining area is provided with an inverted-T-shaped groove, a ridged groove and a trapezoidal groove. The stitching quenched steel concave-curve-surface test piece having multiple hardnesses and machining technology of the die molded surface have following beneficial effects: multiple testing results can be obtained; and based on the design of high-speed milling technology, better cutting effect is achieved.

Description

technical field [0001] The invention relates to a processing technology for a milling cutter test piece and a concave model surface of a milling cutter, in particular to a processing technology for a multi-hardness spliced ​​hardened steel concave curved test piece and a concave model surface, and belongs to the technical field of concave model surface processing. Background technique [0002] There are a large number of depressions, grooves, and corners on the concave model surface of the automobile inner panel cover, which are mostly spliced ​​by hardened steel with inserts, and there are a large proportion of various high-hardness surfaces in the cutting processing area; the hardness and curvature of the processed surface The cutting impact caused by the change, the vibration of the milling cutter is obvious, which directly affects the machined surface quality of the mold surface. [0003] This type of mold surface has a large contour size and a small margin in the finish...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the high-speed milling process of the concave mold of the automobile inner panel cover part cannot directly test the cutting performance of the high-speed milling cutter on the surface of the hardened steel mold, and the design of the milling process is unreasonable, resulting in vibration and vibration of the high-speed ball-end milling cutter. The roughness value of the processed surface is too high to meet the processing quality requirements of the concave model surface

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