The invention discloses a stress crack preventing
cutting device for stainless steel
metal casting machining, belongs to the technical field of
cutting devices, and provides the following scheme that the stress crack preventing
cutting device comprises a cutting
machine body, and a feeding structure for feeding stainless steel
metal castings is arranged on the cutting
machine body; by arranging the feeding structure, the adjusting structure and the preheating structure, two stainless steel
metal castings to be machined can be sequentially and orderly subjected to cutting treatment and preheating treatment correspondingly, preheating treatment is conducted by means of the
electric heating assembly in the preheating cover, and therefore the
temperature difference between the castings and a
cutting tool in the cutting process is remarkably reduced, and the
machining efficiency is improved. And secondly, preheating can promote the internal structure of the
casting to tend to be in a more uniform state, the
stress concentration phenomenon in the cutting process is further reduced, the cutting quality and the overall performance stability of the
casting are remarkably improved, and high precision and high quality of a product are ensured.