Spinning forming method and device based on laser heating

Abstract

The invention discloses a spinning forming method and device based on laser heating. The spinning forming device is characterized by comprising a numerically-controlled spinning machine, spinning process equipment, a laser device, a light guide system, a six-degree-of-freedom robot machining system, a laser machining head, a temperature measuring device and the like. The spinning forming device conducts high-accuracy flexible control over a heating area according to the characteristics of high laser heating speed, accurate and controllable heating parts and temperatures and high degree of freedom and accurate control of the six-degree-of-freedom robot machining system, and spun blanks can be dynamically and locally heated while the spinning process equipment is not heated. The purposes of improving the material spinnability and reducing damage to the spinning machine are achieved. Meanwhile, closed-loop control over the heating temperature and laser output is realized, and realization of production automation is realized. The spinning forming method and device based on laser heating have the advantages of being high in production efficiency, good in process stability, high in forming precision, convenient to operate and the like.

Description

technical field [0001] The invention relates to the technical field of metal plastic processing, in particular to a laser heating spinning forming method and equipment. Background technique [0002] Spinning is a continuous partial plastic forming process, which is mainly used to form thin-walled hollow rotary parts. Compared with the overall forming process, it has the characteristics of small forming load, low requirements for the tonnage of forming equipment, and good material deformation conditions; common Lightweight materials, such as aluminum alloys, magnesium alloys, titanium alloys, etc., and superalloys cannot be formed at room temperature, and need to be shaped under heating, so the application of heating spinning is gradually increasing. [0003] Due to the poor adaptability of heating in the furnace to the size of the spinning billet, flame heating or induction heating devices are often used to heat the billet during the spinning process in production practice. ...

AI Technical Summary

Problems solved by technology

[0003] Due to the poor adaptability of heating in the furnace to the size of the spinning billet, flame heating or induction heating devices are often used to heat the billet during the spinning process in production practice. When the artificial flame heating or the flame heating device is fixed on the wheel seat, the temperature field of the spinning parts is not uniform, and the flame crosses the boundary and is easy to burn the equipment. Adjustment to improve the accuracy of temperature control; Patent No. CN105637356 proposes the use of induction heating spinning to solve the problems of flame heating temperature uniformity, large heat radiation, and low labor efficiency

[0004] Regardless of whether the electric furnace is used to pre-heat the spinning blank as a whole, or the online heating is used to locally heat the spinning blank, the process equipment involved in forming, including the rotary wheel and the mandrel, must be preheated before forming, which will make the forming process equipment The structure is complicated. For example, the patent No. CN104249116A proposes to use a mandrel with an internal heating device in hot spinning, but there are still problems such as large heat radiation, which affects the service life of process equipment and spinning equipment.

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