Titanium alloy casting benching method

Abstract

The invention discloses a titanium alloy casting benching method. During the line drawing, the correction needs to be strictly carried out according to the processing reference, other processing surfaces are considered, and the wall thickness after the processing needs to be uniform; when casting defects are discovered, remediation measures need to be taken for remediation; during the shaping, generally, large surfaces are knocked, and meanwhile, the force cannot be too strong; during the hole drilling, the feeding quantity needs to be small, the feeding speed needs to be uniform, when the cutting resistance is increased or the cutting chip shape and color abnormity is discovered, a drill bit needs to be replaced in time, or the cutting edge needs to be ground again; a screw tap trimming and grinding method is adopted, the screw tap calibration part is trimmed to be narrow, the bottom hole diameter is increased by 0.1mm, the uniform and slow manual tapping is adopted, the sufficient cooling liquid is maintained, and qualified titanium alloy parts are processed. The titanium alloy casting benching method has the advantages that the cutting chip bonding is reduced, the tapping difficulty is reduced, the durability of the drill bit is improved, the quality of the processed parts is improved, the dimension precision is ensured, the processing efficiency is effectively improved, and the production cost is reduced.

Description

[0001] technical field [0002] The invention belongs to the technical field of material processing, and in particular relates to a fitter processing method for titanium alloy castings. [0003] Background technique [0004] Titanium and titanium alloys are engineering materials with good comprehensive mechanical properties. Their main performance characteristics are high specific strength, good thermal strength, and excellent corrosion resistance. They are increasingly widely used in aviation, aerospace, shipbuilding, petroleum, chemical and other industrial fields. However, titanium alloy castings are difficult-to-machine materials, and it is easy to form a very hard oxide layer during processing, which accelerates tool wear; in addition, because the wall thickness of titanium alloy is usually thin and the rigidity is poor, it is easy to produce clamping deformation during processing. Moreover, the machining allowance is small, and it is difficult to align the scribin...

AI Technical Summary

Problems solved by technology

[0004] Titanium and titanium alloys are engineering materials with good comprehensive mechanical properties. Their main performance characteristics are high specific strength, good thermal strength, and excellent corrosion resistance. They are increasingly widely used in aviation, aerospace, shipbuilding, petroleum, chemical and other industrial fields. However, titanium alloy castings are difficult-to-machine materials, and it is easy to form a very hard oxide layer during processing, which accelerates tool wear; in addition, because the wall thickness of titanium alloy is usually thin and the rigidity is poor, it is easy to produce clamping deformation during processing. Moreover, the machining allowance is small, it is difficult to align the marking line, and it is easy to cause waste products; in addition, the large-scale castings have uneven casting components and different hardness, which will bring greater difficulties to machining