Metal injection molding Of Saw Blade Fastener

This part is used to mount the blade of an electric handheld keyhole saw.It connects the blade to the oscillating drive.The material is MIM -316L stainless steel at a density of 7.75g/cm3.Overall dimensions are 19*12*9mm and the weight 11.7g.Two gates are used in moulding to ensure a good filling of the die.Tolerances on parallelism and flatness of the slot surface are better than 0.05mm.

This MIM part was previously made by investment casting,but the tolerance were not good enough to ensure trouble-free functioning.MIM offers close dimensional tolerances .a better sufface finish (Ra3.2um)and a considerable cost reduction.