放電コーティング加工パラメータ選定 に対する品質工学の適用

抄録

MSCoating®（MSC）is the surface enhancement technology, especially to improve anti-wear property at elevated temperature. It has many advantages such as little thermal deformation, very thin thermal affected zone（<10μm），etc. However, the deposition efficiency, deposition rate and coating characteristics are strongly affected by coating block（CB）which is made of the coating material powder. In this study, the parameter designing method is applied for MSC to choice the robust process parameters to the variety of CB properties. Results are summarized as follows:（1）MSC method is supposed to be the energy transfer system. A new analysis model where input is the total electrical charge Q（C）and output is a deposition volume V（_c mm³）is proposed.（2）Response graph is estimated by the L₁₈ orthogonal array test which was carried out with the process parameters and the variety of CBs as control factors and noise factors, respectively.（3）Single factor tests were carried out about some factors which might have interaction effect with another control factors. The interaction effects are confirmed.