Stirring friction composite discharge additive and subtractive material device and method

Abstract

The invention discloses a stirring friction composite discharge additive and subtractive material device which comprises a rotatable stirring head, a base plate is arranged below the stirring head, a cladding layer covers the base plate, a rolling part is arranged on the stirring head in a sleeving mode, the rolling part is detachably connected with the stirring head, and the rolling part makes contact with the cladding layer and conducts rolling stirring on the cladding layer. The cladding layer is rolled and stirred to form an additive layer; the medium supply part is arranged in the stirring head, the discharging end of the medium supply part corresponds to the base plate, a first medium or a second medium circulates in the medium supply part, the base plate is subjected to material increase through the first medium, and the base plate is subjected to material decrease through the second medium. By means of the device, the surface obtained through additional materials can be rolled and stirred, the influence caused by unevenness of the surface of the surface is removed, the additional material quality is finally improved, meanwhile, the device can conduct additional material machining on a base plate and can also conduct subtractive material machining on the base plate, equipment does not need to be additionally replaced, and therefore the machining cost is reduced, and the machining efficiency is improved. And the processing efficiency is improved.

Description

technical field [0001] The invention relates to the field of friction stir welding, in particular to a device and method for increasing and decreasing materials by friction stir composite discharge. Background technique [0002] EDM is an important process in surface engineering technology. It uses the electrical energy stored in the power supply to make the rotating electrode generate high-frequency spark discharge at the moment of contact with the workpiece, and generate a high temperature above 10,000 °C in the discharge area, which will be used as a The electrode of the deposited material melts, and the deposition transitions to the surface of the workpiece, forming an alloyed surface covering layer, forming a deposition layer, thereby obtaining a special coating, improving the surface performance of the workpiece or realizing the repair and remanufacturing of damaged parts. [0003] Friction stir additive is a new type of solid-phase additive manufacturing technology. B...

AI Technical Summary

Problems solved by technology

However, the existing surface obtained after EDM additives is prone to unevenness, which ultimately affects the quality of additives.

In addition, the existing additive components can only perform additive operations on the surface of the substrate. When subtractive processing is required on the surface of the substrate, the additive components are not suitable for subtractive processing. On this basis, the subtractive components need to be replaced. equipment, which increases processing costs

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