Tubeless steel wheel provided with non-welded rim part with non-uniform thickness as well as processing technology of wheel

Abstract

A tubeless steel wheel with no welding and unequal thickness on the rim, including spokes and rims, the spokes and rims are made of the same round cake material, which is ring-cut into spokes after repeated spinning Raw materials and rim raw materials, the spoke raw materials and rim raw materials are spinned for many times to form a spoke and a rim, and the spoke and rim are welded together by welding. The raw material of the spoke and the rim is spinning formed by the same blank material, and the rim part has no assembly joint surface, welding line and solder filler, and its structure is fine and dense. At the same time, the strength of the spoke and the rim is enhanced, and the assembly and welding accuracy is high. . The spokes and rim parts can be formed by spinning to achieve unequal thickness and variable cross-section, so that weak parts can be reinforced, and the material of the parts with little or no stress can be appropriately reduced, so as to realize the weight reduction of the wheel. The rim part has no welding links, and there are no welding and grinding defects; the overall surface quality of the rim part is good, and the airtightness is good.

Description

technical field [0001] The invention relates to the field of wheels, in particular to a tubeless steel wheel with no welding and unequal thickness on the rim and its processing technology. Background technique [0002] There are many limitations in the production process and product itself of the traditional all-welded tubeless steel wheel. The spokes and rims of this kind of wheel come from two different raw materials, and each is manufactured through multiple passes. Among them, the process route of the spoke is: blanking → punching large and small holes → spinning → blowing hole → expanding bolt hole → hole in the car, end face, outer circle → milling crescent, etc.; the process route of the rim is: blanking → rolling → Alignment → Flattening → Butt welding → Slagging → Rolling → End cutting → Rounding → Grinding → Flaring → Rolling → Expansion → Air tightness inspection → Punching and dimple → Grinding, etc.; finally assembly of spokes and rims And welded into the wheel...

AI Technical Summary

Problems solved by technology

From the above description, it can be seen that the existing tubeless steel wheels have a cumbersome process and complicated management, and the production environment involving welding is relatively harsh, and there are sparks, dust, etc. in the production process.

In addition, there are defects in the welding and grinding of the rim part, which is prone to cracking in the subsequent process, resulting in the scrapping of the wheel, or the wheel will leak air during use

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