Hot-working die surface multipoint combination type bionic machining device and strengthening repair method

Abstract

The invention relates to a hot-working die surface multipoint combination type bionic machining device. A computer of the device is connected with a servo control system of a six-degree-of-freedom robot, a laser and a rotary serve device of a rotary workbench; the laser comprises a plurality of optical fiber laser heads; a first laser head clamp plate is fixedly mounted on the rotating head of the six-degree-of-freedom robot; a second laser head clamp plate is mounted above the rotating workbench. Working modes of the rotating workbench and movement curves of the laser heads can be arranged according to the shape and area of a to-be-machined area on a die, and laser parameters, number of laser paths, light splitting modes and the like are designed according to strength requirements on surface materials; output energy of laser as well as the number of output light paths are combined with the movement curves, complexity of processing paths is guaranteed, and requirements of different positions and different energy during machining are guaranteed; the workbench or the die on the ground can be independently machined, two dies can be machined simultaneously, efficiency is improved, and cost is saved.

Description

technical field [0001] The invention relates to a multi-point combined bionic processing equipment and a surface processing method of a hot-working mold, which are used for processing and repairing hot-working molds with complex and diverse surfaces that fail under thermal fatigue wear and erosion wear conditions . Background technique [0002] At present, hot work molds are mainly used for hot deformation processing and die casting. Its working characteristic is to make the metal material produce a certain plastic deformation above the recrystallization temperature, or to make the high-temperature liquid metal cast into shape. In order to obtain parts or precision blanks of the desired shape. The wear in the cavity of the hot work die is different from the formation factors of the wear of the cold work die. The wear of hot die forging is mainly due to the fact that the friction between the mold and the processed red hot metal billet is not lubricated, and is oxidized by ...

AI Technical Summary

Problems solved by technology

The hardness of the module is increased, and the cold and heat fatigue resistance of the mold is reduced, which causes thermal fatigue cracks to be generated prematurely on the surface of the mold cavity. Due to the low fracture toughness of steel, the thermal fatigue cracks may reach a critical size when they are small. Dimensions, and then the rapid expansion of instability leads to brittle fracture of the mold

At present, the method of laser bionic processing can greatly improve the life of the mold, but based on the complex structure and variety of hot work molds, it is difficult for ordinary laser bionic equipment to complete mold processing efficiently and in batches. Therefore, it is necessary to develop a method that can efficiently and quickly Laser processing bionic equipment that processes hot-working molds from multiple angles at the same time is of great significance to improving the life of hot-working molds and improving industrial production efficiency

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