Plastic Part Design for Injection Molding

Realization of a Titanium Spinal Implant with a Gradient in Porosity by 2‐Component‐Metal Injection Moulding

“…Here, samples were fully unloaded after 2. 5,5,10,15,20,25,30,35,40,45, and 50% of deformation. The amount of deformation is related to the starting height.…”

“…[29] For parts with small to medium sized dimensions and high geometrical complexity, MIM is one of the most economic production technologies, which is established in industry since many years. In this context, the 2-component-metal injection moulding (2-C-MIM) technique is a more elaborated variation, also derived from plastics industry, [30,31] in which the combination of two different feedstocks in the same part becomes possible. Related case studies demonstrated the potential of 2-C-MIM for manufacturing parts made of different steel feedstocks, [32][33][34][35][36] different porcelain feedstocks, [37] or a composite of zirconia and steel.…”

Interactive robust optimal design of plastic injection products with minimum weldlines

“…One of the most important design requirements is to minimize weldlines [33,39,40] that look aesthetically unpleasant. The weldlines may occur along the surfaces where two or more flow-fronts of molten resin meet.…”

“…The levels (and the corresponding values) for the design variables are G 1 = 3(50), G 2 = 3(38), G 3 = 1(10), Fig. 8 Graphical representation of the design range and levels at the 5th iteration t f ill = 3(10), T melt = 2(205), and T mold = 1 (40). The levels of the Gate 1 (G 1 ) and the Gate 2 (G 2 ) at the optimal Fig.…”

Gas-assisted powder injection molding: A study on the effect of processing variables on gas penetration

“…Surface defects due to the interaction between the polymer melt and the gas are possible [12]. In addition, new processing variables are introduced to the molding process control, and these include delay time, gas pressure, and gas time [13][14][15].…”