To a monolithic automotive steel ring production process

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The present invention discloses a monolithic automotive steel ring production process, including the gassing door, hit identification, coating, inspection, packing, warehousing; characterized by processes of: (a) steel billet cut into desired roll or cylinder stock, (b) with the blank upper flared cuffs Zhuanyong molded blanks, (c) the upper pressure Pingzheng horn blank, (d) punching, (e) wind hole punch, (f) spinning, (g ) milling bolt hole, (h) finishing process, (i), open air entrance, (j) the end face hobbing, (k) require the blank flange portion heated to 600-800 ℃, flanging preformed, ( l) the blank flange preformed keeping the heating temperature 600-800 ℃, flanging. Use of the present invention as a whole truck rims manufacturing process, can be made without reducing the strength on the basis of rims reduce the weight, manufacturing process fewer welds, reducing the amount of machining the finished product, to improve the overall mechanical properties of the steel ring, and reduce manufacturing costs

TECHNICAL FIELD

The present invention relates to an automotive steel wheel production technology, particularly to a monolithic automotive steel ring production process, belonging to the technical field of manufacturing rims.

Background technique

Currently, in the prior art, a conventional car tubeless steel wheel production technology is the first production of sheet metal into the spokes, with steel production into the rim, spokes and rim and then welded together into car rims This production process often because welding defects caused by weld prone to cracking, steel machining large split welding, the overall mechanical properties and good safety performance.

SUMMARY OF THE INVENTION

In response to these shortcomings, the present invention provides a monolithic automotive steel ring production process, reduce the number of welds manufacturing process, reducing the amount of machining of finished products to improve the mechanical properties of the steel ring.

To achieve the above purpose, the technical aspect of the present invention is: a monolithic automotive steel ring production process, the process including the gassing door, hit identification, coating, inspection, packing, storage, at the door before gassing automotive wheel production process steps:

(a), roll cut: according to the calculated size of the pipe or cylindrical roller rolled steel ingot or cut to the desired cylindrical blank;

(b), shut: the steel ingot or billet cylinder shut placed on special mold, hot forging, hot or cold forging, cold pressing method to steel ingot or billet upper end of the cylinder with special mold pressing cuffs flares blank;

(C), flattening: flattening with special mold would flared upper pressure flat blank;

(d), punching: a hydraulic machine out of the bolt holes, and center hole;

(e), rushing wind hole: out of air vents;

(f), spinning: spinning the blank according to product size punching after molding;

(g), milling bolt holes: Finishing bolt holes, chamfers;

(h), finishing processing: according to drawings, fine turning center hole;

(i), to open the gas door: out the door vent or milling;

(j), the end face hobbing: cut off the excess blank;

(k), preformed flanging: the blank is heated to a required cuff portion 600 - 800 ° C performed after flanging, forming a shape in order to facilitate the next step;

(1), flanging: blank preformed keeping the heating temperature 600 - 800 ° C, then the cuffs form the finished shape.

Further, in the preformed flanging, flanging, the heating temperature is 700 ° C.

Further, the special mold shut up, shut upper die set truncated conical cavity mold shut down a cylindrical mold.

Further, the flattened special mold, flatten into a disc-shaped upper mold, the lower mold flattened truncated cone.

On the door step of the gas can also be placed in front of the other processes.

The present invention is a monolithic automotive steel ring production process by the system as a whole truck rims, due to the spinning process, it can be made without reducing the strength on the basis of rims reduce the weight, manufacturing process fewer welds, reducing machining amount of the finished product, improve mechanical performance and safety rims, reducing manufacturing costs.