Model of process parameters and sectional shape of samples in Single-layer Single-pass Sn63Pb37 Fused Coating Additive Manufacturing

Fused coating additive manufacturing is proposed to improve forming efficiency and material utilization. The forming property of single-layer single-pass is the basis of the process. The size of the sedimentary section is the smallest feature unit which includes the layer-height and pass-width. In this paper, the Design Expert 8.0.6 software is used to design the single-layer single-pass central composite experiment. In the reasonable parameters, the quadratic regression equations between the single layer cross-sectional size and process parameters were established by performing the second regression experiments. The misalignment and significance of the quadratic regression equations were checked and the non-significant variables in the regression model equation were excluded. The quantitative influences of main forming parameters on the single-layer single-pass cross-sectional size were finally analysed in detail.