Abstract:
Components on the Stephan TC 400 machine which often experience failures in the blade often occur, this certainly can reduce production results, this failure often occurs in similar parts, which in this case is the blade mixer. The analysis was carried out in three ways, namely macro observation, micro observation, and fracture analysis. From the results obtained in this study, improvement was carried out to be able to optimize production results, what was done was to replace knife blade material with material that has better characteristics, in this study the authors used SUS 316 material to be able to replace the previous material, AISI 420. Where the SUS 316 material has more ductile characteristics compared to AISI 420 and is more corrosion resistant. In the research conducted, the authors found that the KIC SUS 316 value was better than AISI 420, ie the propagation of crack SUS 316 was slower than that of AISI 420. This was evidenced by the value of the material composition contained in each material specification
