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No-seam steel felly making process

A manufacturing process and welding-free technology, which is applied in the field of manufacturing steel automobile wheels, can solve the problem of high production cost, and achieve the effects of low production cost, fuel consumption saving and cost reduction.

Active Publication Date: 2006-03-01
JIAXING STONE WHEEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, manufacturing rims with process plan 3 requires high-quality large-diameter thin-walled seamless steel pipes and imported rolling machines, and the production cost is very high.

Method used

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  • No-seam steel felly making process
  • No-seam steel felly making process

Examples

Experimental program
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Embodiment Construction

[0008] Such as figure 1 As shown, the steps of this seamless steel rim manufacturing process are: (a) blanking of cast billet tube → (b) heating → (c) rolling → (d) spinning → (e) shaping.

[0009] (a) Cutting: Cut the cast billet pipe into pipe sections with a sawing machine according to the principle of constant volume.

[0010] (b) Heating: The cast steel pipe segment is heated to the forging temperature with a heating furnace.

[0011] (c) Rolling: use a ring rolling machine to roll the heated pipe section to the size of the intermediate billet. During the rolling process, the as-cast microstructure is modified into a forged microstructure. The shape of the intermediate billet is shown in the figure, the inner diameter of the middle part is the same as that of the middle part of the finished product, and the diameters of both ends are larger, and it is bell-shaped.

[0012] (d) Spinning: Use a powerful spinning machine to spin the rolled and expanded intermediate billet...

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Abstract

The no-seam steel felly making process includes the following steps: cutting cast steel pipe blank, heating, rolling expansion to form the intermediate blank, rotation pressurizing and finishing. Using cast steel pipe blank, rather than great caliber thin wall seam-less steel pipe, has low cost, and the felly product has high machining precision, raised material strength and no air leakage. The no-seam steel felly may be used in no-inner tube wheel and has the advantages of high safety, high reliability, low oil consumption, etc.

Description

technical field [0001] The invention relates to a manufacturing technology of a steel automobile wheel, a manufacturing process of a weldless steel wheel rim. Background technique [0002] Steel wheels are the wheels that are widely used in automobiles, especially on trucks. Steel wheels generally consist of two parts, the spokes and the rim, which are manufactured separately and then welded together. Among them, the manufacturing process of the rim can be summarized as follows: 1. Sectional steel strip coiling / welding process; 2. Flat steel strip coiling / welding / rolling process; 3. Seamless steel tube spinning / rolling process. The rims manufactured by Scheme 1 and Scheme 2 are welded with section steel or strip steel, and there is a through weld on the rim. In the process of using the wheels manufactured with such welded rims, it is difficult to ensure that the welds on the rim do not leak air under frequent alternating stresses. Therefore, this type of rim is mainly use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P13/00B21D22/14
Inventor 张建荣张小光吴欣生
Owner JIAXING STONE WHEEL
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