A friction stir additive manufacturing machine

Abstract

The invention discloses a novel friction stir additive manufacturing machine. The machine comprises a base, wherein a storage trough is arranged in the top of the base; a connecting hole is formed inthe inner wall of the bottom of the storage trough; two rotating grooves are separately arranged in the inner sidewall of the bottom of the two sides of the storage trough; two driving motors are fixedly arranged on the inner walls of the sides, away from each other, of the two rotating grooves; a moving groove is arranged in the inner wall of the top of each rotating groove; an identical cross beam is slidably connected to the inner walls of the two moving grooves; two rotating plates are slidably connected to the cross beam symmetrically; and the bottoms of the two rotating plates extend into the connecting hole and are separately and rotatably connected with the inner walls of the two sides of the connecting hole. The machine is easy to operate; materials can be transported into a grinding system conveniently by starting the driving motors and an adjustable-speed motor at the same time; and the materials can be transported intermittently, so that metal powder in the grinding systemis capable of making sufficient contact with and being sufficiently mixed with workpieces.

Description

technical field [0001] The invention relates to the technical field of engineering manufacturing, in particular to a friction stir additive manufacturing machine. Background technique [0002] Additive manufacturing, commonly known as 3D printing, integrates computer-aided design, material processing and forming technology, and is based on digital model files. Through software and numerical control system, special metal materials, non-metal materials and medical biological materials are processed according to extrusion, sintering , melting, light curing, spraying and other ways to accumulate layer by layer to create a manufacturing technology for physical objects. [0003] Notification number: CN108161448A discloses a friction stir additive manufacturing machine. The new friction stir additive manufacturing machine includes a powder feeding system, a grinding system, a welding system, a powder outlet and a baffle plate. The invention is mainly used in the field of industri...

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Problems solved by technology

[0004] The powder feeding system in this invention only uses threaded bearings for transmission. Such an operation method will be inefficient and cannot carry out intermittent transmission. Therefore, the metal powder cannot be fully fused with the workpiece evenly during grinding, so We propose a friction stir additive manufacturing machine to address the issues raised above

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