Preparation method for high-strength 38CrMnAl nano-material rack

Abstract

The invention relates to the field of rack forming, in particular to a method and mold for preparing a high-strength 38CrMnAl nano-material rack. The method is characterized in that the high-strength 38CrMnAl nano-material rack can be prepared with low cost; and meanwhile, through an S-shaped channel and a rack bush die and two-time drawing, enough strain can be accumulated, and finally, a high-strength 38CrMnAl nano-material rack plate can be obtained. On the basis of the S-shaped channel mold, continuous drawing deformation of the rack is achieved, nanocrystallization of rack plate metal is achieved, the labor intensity of a manipulation worker is relieved, and the application range of a thin-wall rack is broadened.

Description

technical field [0001] The invention relates to the field of rack forming, in particular to a method and mold for preparing a high-strength 38CrMnAl nano material rack. Background technique [0002] Rack is a common basic component of mechanical transmission, which is widely used and used in large quantities. At present, the known tooth profile processing of general racks includes traditional processing methods such as gear hobbing, gear shaping, wire cutting, grinding racks, and milling. The metal loss is large, and a large number of various processing machine tools and operators need to be equipped, and the production cost is high. At present, the production of most spur racks mostly adopts the traditional machining method, but it has many defects, such as: low material utilization rate, high cost, and low processing efficiency. With the development of the machinery industry and the intensification of international competition, higher requirements are put forward for the...

AI Technical Summary

Problems solved by technology

This type of processing method increases the material utilization rate from 40% of the original traditional processing method to more than 70%, and the rack strength is also increased by 20%, and the processing efficiency is increased by about 40%, but these processing methods are all used in single-piece production processing method, its processing efficiency needs to be further improved

At the same time, with the development of my country's high-end equipment manufacturing industry, it is especially necessary to develop high-strength, high-wear-resistant, high-life precision machine tools and racks for robot precision reducers. At present, the low life of racks directly affects the rapid development of high-end equipment manufacturing industries. develop

[0003] The invention with the application number 2010101887620 proposes to continuously extrude the hollow elongated spur gear tube on a horizontal extruder, and then cut the continuously extruded part into finished gear parts by wire cutting. The production efficiency of this invention is relatively high. High, and can improve the mechanical properties and processing performance of gears, but this invention is only for gear parts, and there is no relevant literature report for rack parts. At the same time, develop high-quality secrets with high strength, high wear resistance and long life. Racks for precision reducers of machine tools and robots have more potential use value and development prospects

In order to overcome the strength problem of thin-walled racks and obtain racks with longer service life, an S-shaped channel mold drawing method is provided to prepare high-strength 38CrMnAl nanomaterial racks

Images