基于MATLAB微束等离子弧焊丝网搭接成形机理研究

Research on lap-forming mechanism of MPAW based on MATLAB

为研究微束等离子弧焊丝网搭接成形的机理,本文采用MATLAB对丝网焊接接头的四种焊点形貌的成形条件进行数据处理。结果表明:在焊接过程中不同的焊接热输入、接头两侧丝网经线间距、丝网毛边长度、装配方式等都会对熔池的金属量以及散热条件产生影响,从而使得熔池大小和分布不同,产生的焊点形貌也将不同。在一定条件下,平均热输入增加,焊点体积也会增加,所需丝网上层毛边的长度也随之增加,丝网下层毛边长度的增加会使得焊点体积总体增大。

In order to study the mechanism of lap forming of micro-beam plasma arc welded wire mesh,this paper uses MATLAB to process data on the forming conditions of the four welding spot shapes of wire mesh welded joints.The results show that during the welding process,different welding heat input,wire mesh warp spacing on both sides of the joint,wire mesh burr length,assembly method,etc.,will affect the amount of metal in the molten pool and heat dissipation conditions,resulting in different sizes and distributions The morphology of the generated solder joints will also be different.Under certain conditions,when the average heat input increases,the volume of the solder joint will also increase,and the length of the required burrs on the wire mesh will also increase.The increase in the length of the burrs under the wire mesh will increase the overall volume of the solder joint.