Water soluble Invar 36 feedstock development for mu PIM

作者：Hidalgo J^*; Jimenez Morales A; Barriere T; Gelin J C; Torralba J M

来源：Journal of Materials Processing Technology, 2014, 214(2): 436-444.

DOI：10.1016/j.jmatprotec.2013.09.014

• Micro powder injection moulding
• Invar 36
• Solid loading optimisation

A water soluble binder system based on cellulose acetate butyrate (CAB) and polyethylene glycol (PEG) is proposed and investigated to carry out a micro powder injection moulding (mu PIM) process with an Invar 36 alloy powders. The overall process was optimised with an emphasis on the determination of the optimal solid loading. Several methodologies were evaluated and compared to determine this parameter. A full mu PIM was performed with different powder content feedstocks. Dog bone-type micro test parts were fabricated thereof and their mechanical properties were evaluated. Solid loadings up to 65 vol.% resulted to have the most equilibrated properties to successfully fabricate Invar 36 micro parts with the selected powder and binder system.

• 出版日期2014-2