pISSN : 1598-706X / eISSN : 2288-8381
한국주조공학회지 (27권4호 173-178)
Development of New Semi-solid Method and Practical Application to Bearing Bracket
신 반응고 슬러리의 개발과 베어링 브라켓에 대한 적용
Jae-Gi Sim, Jun-Young Moon, Jae-Min Kim, Chun-Pyo Hong
The bearing bracket, which has produced by the squeeze casting for the high strength in lightweight part of automobile, was developed by the rheocasting process using the H-NCM slurry. Compared with the squeeze casting, the rheocasting process has some merits such as shortening cycle-time, reducing total weight, and increasing productivity. In this study, partial feeding test was carried out by controlling plunger stroke length and compared with semisolid simulation. Optimal casting parameters such as injection speed and stroke variations were established. Sound products with integral microstructure were obtained by the H-NCM slurry and X-ray analysis also showed the integral condition throughout the entire parts.
H-NCM, Semisolid, Rheocasting, Carreau-model.