Bending die with self-lubricating pits and preparation method

Abstract

The invention provides a bending die with self-lubricating pits and a preparation method, and relates to the field of bending dies. The bending die comprises a male die and a female die which are matched with each other, wherein a plurality of pit textures arranged in a specific mode are arranged on the working faces of the male die and the female die, and the pit textures are used for containing a solid lubricant to form self-lubrication; the pit textures are distributed on the bending part and/or the cambered surface part of the working surface and avoid the ridge lines of the working surfaces; a micro-pit texture is machined on the surface of the bending die and can store a lubricating agent and abrasive dust generated in the working process, and the lubricating agent can continuously feed oil in the working process of the bending die, so that the effect of reducing friction is achieved; in addition, the abrasive dust is stored in the micro-pit texture, and three-body abrasion caused by the fact that the abrasive dust stays on the working face is avoided, and the anti-friction and anti-wear performance of the bending die is comprehensively improved.

Description

technical field [0001] The disclosure relates to the field of bending dies, in particular to a bending die with self-lubricating pits and a preparation method. Background technique [0002] The bending die is a processing mechanism that directly contacts the sheet or workpiece in the bending machine and forces it to be bent into a specific shape. It can be divided into a punch and a die. The shape and structure of the bending die are changeable. For workpieces with different shapes and precision requirements, different bending dies can be replaced for processing. Bending molds need to bear huge loads and impacts during processing, and will experience huge friction and wear during the forming process of sheets or workpieces. If the surface quality of the bending mold is not up to standard or the working time is too long, excessive friction is likely to occur A case of wear and tear. [0003] The precision of the bending die has a direct impact on the processing quality of t...

AI Technical Summary

Problems solved by technology

Bending molds need to bear huge loads and impacts during processing, and will experience huge friction and wear during the forming process of sheets or workpieces. If the surface quality of the bending mold is not up to standard or the working time is too long, excessive friction is likely to occur wear and tear

[0003] The precision of the bending die has a direct impact on the processing quality of the workpiece. Once the bending die is worn out, it will not only shorten the life of the bending die, but also reduce the overall processing accuracy of the bending machine, making the processed workpieces not up to standard

The inventors have found that at present, the method of reducing mold wear is mostly achieved by changing the mold material and replacing it with a wear-resistant mold, but this method not only increases the processing difficulty of the mold, but also increases the manufacturing cost of the mold; on the other hand, with With the occurrence of wear and tear, while the processing accuracy of the bending die is reduced, it will produce undesired deformation, which will further aggravate the wear of other processing positions of the die

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