Metal Watch Band Parts

Product Detail

MIM is a net-shape molding technology that belongs to Powder Metallurgy. The MIM process combines the design flexibility of plastic injection molding with the strength and integrity of wrought metal to offer cost effective solutions for highly complex part geometries.
The MIM process is typically explained as four unique processing steps ( Compounding, Molding, Debinding and Sintering ) to produce a final parts that may or may not need final CNC machining  operations.






Contrast for MIM and Traditional Process

Item	Metal Injection Mold(MIM)	PM	Precision Casting	Machining Operation	Stamping
Density	98%	86%	98%	100%	100%
Tensile Strength	High	Low	High	High	High
Surface Finish	High	Medium	Medium	High	High
Small size	High	Medium	Low	Medium	High
Thickness	High	Medium	Medium	Low	High
Complexity Level	High	Low	Medium	High	Low
Design Tolerance	High	Medium	Medium	Medium	Low
Capacity	High	High	Medium	Medium-High	High
Range of Applying Material	High	High	Medium-High	Medium	Medium
Supply Ability	High	High	Medium	Low	High







Contrast for MIM and Precision Casting Molding


Property	MIM	Precision;CastingMolding
MinimumThickness	0.4mm	2mm
MaximumThickness	10mm	Unlimited
MinimumDiameter	0.4mm	2mm
ToleranceofDiameter4mm	+/-0.06mm	+/-0.2mm
SurfaceRoughness	1µm	1µm






MIM Material Property


Material Designation		Density	Hardness	UTS	Elongation
		g/cm³	/	Mpa	%
Iron-based Alloy	MIM-2200 ( Sintered )	7.5	45-65HRB	310	40
	MIM-2700 ( Sintered )	7.6	70-90HRB	410	25
Stainless Steels	MIM-316L ( As-sintered )	7.75	110-160Hv1	498	40
	MIM-316 Duplex ( As-sintered )	7.65	70-100HRB	732	24
	MIM-17-4PH ( Sintered )	7.5	20-25HRC	900	11
	MIM-17-4PH ( Heat Treated )	7.5	35-40HRC	1160	7
	MIM-304 ( As-sintered )	7.65	110-160Hv1	480	35
	MIM-440C ( Sintered )	7.5	25-35HRC	-	-
Tungsten Alloy	95%W-Ni-Fe ( Sintered )	18.1	30	960	25
	97%W-Ni-Fe ( Sintered )	18.5	33	940	15
Hardened Steels	MIM-4605 ( Sintered )	7.5	70-100HRB	700	11
	MIM-4605 ( Heat-treated )	7.5	45-50HRC	1610	3