Green Strength Optimization in Metal Injection Molding Applicable with a Taguchi Method L9 (3)⁴

Abstract

Abstract:Recently Metal injection molding is selected as a vital process in producing large amount of small part with complex geometry and intricate shape. This process is lead to solve cost effective issue in manufacturing fields. Feedstock composition behavior categorized as one of impact factor in determines the victories in metal injection molding process. Thus this paper is focused on optimizing the strength of green part by applied Taguchi Method L9 (3 4 ) as optimization tools during injection process. The composition of feedstock is 55% powder loading (PL) were injected by injection molding machine .Several injection parameter were optimized such as injection temperature (A), barrel temperature (B), injection pressure (C) and Speed (D) The results analyzed by using Signal to Noise Ratio (S/N ratio) terms. The highest green strength is A

Penggunaan Material 316l Untuk Green-Part Test Piece Dengan Teknik Metal Injection Molding

“…Tahapan pembuatan green-part test piece mempunyai tujuan mempersiapkan tahap lanjutan debinding dan sintering sehingga hasilnya dapat dibandingkan sifat material hasil sintering dengan hasil proses pengujian berupa uji Tarik atau tensile test. [11] Homogenitas feedstock mendorong konsistensi dimensi dari bagian dalam tahap injection mold dan membantu mencegah cacat. Feedstock yang tidak homogen dapat menghasilkan gradien densitas di dalam bagian yang dicetak dan menyebabkan distorsi produk.…”

“…Dengan modifikasi yang tepat dari kontrol termal ruang molding, distorsi green part dapat dihindari, dan akurasi geometris dapat ditingkatkan. [11]- [13] Terdapat beberapa penelitian sebelumnya yang menyelidiki efek ukuran partikel bahan baja dan hasil mixing (feedstock) dalam menghasilkan produk dari proses MIM. Temuan terhadap sediaan awal, serbuk baja berukuran -16 µm, -22 µm, dan -31µm dapat menghasilkan kepadatan 99,2% atau lebih baik.…”

Green density optimization of stainless steel powder via metal injection molding by Taguchi method

“…In detailed explanation, S/N ratios is help in prediction the optimum result besides improve the quality via variability reduction and improved the measurement based on repetition [19]. Thus, paper are discussed the optimization of optimum green density with 60% Powder loading.…”