MIM Parts for Mobile Phone Instruments

or any part TX manufactures, from the beginning to the end, TX follows a certain guideline & flow,

Design Guideline

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Fast assessment of a part suitable for metal or ceramic injection molding based on:

1. Cost-effective

Normally yearly demand over 20k and typical weight from 0.02-50g will be highly cost reduction when tooling cost and raw material cost been considered.

2. Geometry Complex

PIM technology is specially profit for component has holes,slots,ribs,protrusions,and multiple features.The typical max outlet is range from 25mm to 35mm,wall thicjness 0.08 to 10mm.

Several aspects of the MIM component design improve the ease of manufacturing,and there are a number of design features that should be avoided. These are categorized as follows:

 Allowed Design Features

1.Axisymmetric,nonsymmetrical,prismatic,square,and freeform features

2.Cantilever and nonsymmetrical shapes

3.Stiffening ribs and locator features for assembly

4.Protrusions,bosses,and studs

5.Most hole shapes are allowed, including blind and through holes

6.Holes at angles to one another

7.Undercuts, grooves,slots,depressions

8.External teeth,external or internal threads

9.Knurled and waffle surfaces

10.Part number or identification logo created by the mould

Features To Avoid

1.Inside closed cavities

2.Undercuts on internal bores

3.Very shape corners or design-desired radius greater than 0.05mm

4.Long pieces without a draft or taper to allow ejection

Finishing:

Thermal Processing

1.vacuum heat-treating &annealing

2.Sealed quech heat-treating & atmosphere tempering

3.Case hardening

4.Ion&gas nitriding

5.Various organic coatings

Plating&Surface Treatment

1.Trivalent Cr, Electroless Ni (+PTFE) & Bright Ni.

2.Hot blackening and manganese phosphate.

3.Passivation and electro-polishing

4.A full range of PVD coatings.

5.Vibratory and high energy finishing

6.Glass/Ceramic bead blasting, micro-blasting and grit blasting

7.Hand and machine polishing for consumer products.

8.Laser engraving.