Middle trough ledge forging forming method

Abstract

The invention belongs to the technical field of forging forming methods, and particularly relates to a middle trough ledge forging forming method which comprises the steps that a blank is put into a flattening die to be flattened; and the flattened blank is put into a finish forging die to be subjected to bending type finish forging. The whole ledge is subjected to one-time forging forming manufacturing in a special forging mode, a new process is invented, according to the special structure of a product, the upper edge and the lower edge of the ledge are unfolded, the narrow rib position is turned outwards by 90 degrees, flattening is conducted, the specification of equipment needed by the flattening process is small, the flattening process is easy to achieve, then the bending mode is adopted for finish forging forming, so that the product forming difficulty is greatly reduced, and the process implementation possibility is also greatly improved. The defects in the prior art are overcome.

Description

technical field [0001] The invention belongs to the technical field of forging forming methods, and in particular relates to a forging forming method of a middle groove side. Background technique [0002] The middle groove of the scraper machine is mainly used in the scraper conveyor and the reloader in the coal mine. The middle groove of the scraper machine is the fuselage of the scraper machine, which is an important part of the middle section of the scraper machine. The main parts such as the middle plate and the bottom cover plate are currently processed with wear-resistant plates. The main purpose is to increase the wear resistance of the middle plate and the bottom plate and increase the life; It is a casting process. The internal structure of the cast groove side product is loose, there are many inclusions, the structure is uneven, the heat treatment process is poor in stability, the machining performance is poor, the final mechanical performance is poor, the impact r...

AI Technical Summary

Problems solved by technology

The disadvantage of this process is that although the internal structure of the groove side is improved by the rolling process and the wear resistance is enhanced, the final groove side and the end are connected together by the welding process. The strength is greatly reduced, and a new welding process is added, which greatly increases the manufacturing cost, and the stability of the relative dimensional guarantee is poor. Only when the tolerance zone of the connection gap between the groove sides is increased can the interchangeability of each groove side be guaranteed. The gap tolerance between the Japanese connecting ring and the convex and concave ends is relatively large, and the noise of the equipment is large, which reduces the market competitiveness.

[0005] If it is formed as a whole, the existing equipment at home and abroad cannot be forged, and the narrow ribs that are complicated to form at both ends cannot be completely filled, so it is impossible to achieve forging by complete extrusion.

Images