Machining method of H-shaped thin-wall parts

Abstract

The invention provides a machining method of H-shaped thin-wall parts. The machining method includes selecting tri-blade taper-shank rough-machining milling cutters and fine-machining milling cutters according to groove depth, part height and groove width of H-shaped thin-wall parts to be machined, wherein the diameter of the milling cutters ranges from one second of the groove width to the groove width minus two, and roughness of the grinding positions of cutting edges of the fine-machining milling cutters is not higher than Ra 0.4; setting groove depth, groove width and three to eight layers of rough-machining layers on a numerical-control machine tool, setting the thickness of the rough-machining layers at 2-3 millimeters and the fine-machining allowance at 0.5-1 millimeters; setting linear speed and cutting feed of rotation of a spindle of the numerical-control machine tool, wherein linear speed and cutting feed of rough machining are 200-230 m / min and 70-74 mm / min respectively, and those of fine machining are 305-370 m / min and 100 / 115 mm / min respectively. By the machining method of the H-shaped thin-wall parts, machining procedures of parts are simplified.

Description

technical field [0001] The invention relates to a processing method for an I-shaped thin-walled part, which belongs to the technical field of machinery. Background technique [0002] With the continuous improvement of product performance requirements in the mechanical design industry, the increase in the number of thin-walled parts has gradually become a trend in the machinery manufacturing industry, and the processing quality and precision requirements for thin-walled parts are also getting higher and higher. Such as I-shaped thin-walled parts, the base of the parts is thin-walled, and the thin-walled base is clamped with conventional soft jaws or vices during milling. The thin-walled parts are easily deformed during processing, and the quality of the processed parts is unstable; Loading and unloading takes time and effort, the processing steps are cumbersome, and the processing efficiency is low; secondly, loading and unloading such parts requires skilled professional skil...

AI Technical Summary

Problems solved by technology

Such as I-shaped thin-walled parts, the base of the parts is thin-walled, and the thin-walled base is clamped with conventional soft jaws or vices during milling. The thin-walled parts are easily deformed during processing, and the quality of the processed parts is unstable; Loading and unloading takes time and effort, the processing steps are cumbersome, and the processing efficiency is low; secondly, loading and unloading such parts requires skilled professional skills