Method for cutting 35CrMnSi casting dead head

Abstract

The invention discloses a method for cutting a 35CrMnSi casting dead head, and belongs to the field of casting. The method for cutting the 35CrMnSi casting dead head comprises the steps that 1, a cutting tool is prepared; 2, a gas cutting tool is started, and the 35CrMnSi casting dead head is preheated; and 3, when the temperature of the 35CrMnSi casting dead head ranges from 580 DEG C to 620 DEG C, the 35CrMnSi casting dead head is cut, and therefore cutting work on the 35CrMnSi casting dead head is completed. A gas cutting gun is adopted as the cutting tool. According to the method for cutting the 35CrMnSi casting dead head, the problem that when a cutting method in the prior art is adopted for cutting the 35CrMnSi casting dead head, cracks are often generated on a 35CrMnSi casting at the cut dead head position is solved, and therefore cracks are avoided, and the quality of the 35CrMnSi casting is guaranteed.

Description

technical field [0001] The invention relates to a cutting method, in particular to a method for cutting risers of 35CrMnSi castings. Background technique [0002] Castings are metal shaped objects obtained by various casting methods, that is, the smelted liquid metal is poured into the pre-prepared mold by pouring, injection, suction or other casting methods, and after cooling, it is polished and other subsequent processing methods. , the obtained object has a certain shape, size and performance. [0003] When molding according to the casting, in order to prevent shrinkage cavity, shrinkage porosity, exhaust and slag collection, a riser is usually provided, so the riser is an indispensable part. [0004] Since the riser is not the shape of the casting, the riser will be cut off after the sand cleaning work is completed. When the riser of the 35CrMnSi casting is cut by the cutting method in the prior art, cracks often occur on the 35CrMnSi casting at the position of the cut...

AI Technical Summary

Problems solved by technology

[0005] For above-mentioned existing problem, the present invention provides a kind of method of cutting 35CrMnSi casting riser, often can produce crack on the 35CrMnSi casting of cutting riser position when adopting cutting method in the prior art to cut the riser of 35CrMnSi casting problems, thereby avoiding the occurrence of cracks and ensuring the quality of 35CrMnSi castings