Jewelry Accessories

MIM Powder Metallurgy Precision Parts – Standard Technical Specifications

I. Core Forming Parameters

Minimum Wall Thickness:​ 0.3 mm
Recommended Wall Thickness Range:​ 0.5 mm – 6 mm
Individual Part Weight Range:​ 0.1 g – 200 g
Maximum Part Envelope Dimensions:​ 120 mm × 120 mm × 60 mm
Integral Forming Capability:​ Directly produces hollow structures, card slots, freeform curved surfaces, blind holes, through holes, internal/external threads, and complex bent geometries without secondary machining.

II. Dimensional Accuracy & Tolerances (Industry Standard)

General Dimensional Tolerance:​ ±0.3% – ±0.5%
High-Precision Critical Dimensions:​ ±0.01 mm – ±0.03 mm
Hole Diameter Tolerance:​ ±0.02 mm
Geometric Tolerances (Flatness, Parallelism, Perpendicularity):​ 0.005 – 0.02 mm
Batch Consistency:​ High dimensional repeatability; sintering shrinkage is stable and controllable.
Available Surface Treatments:​ Electropolishing, passivation for rust prevention, PVD coating (Black Gold / Champagne Gold / Gunmetal / Silver), electroplating, black oxide, brushing, laser marking.
Bur-free Integral Forming:​ Significantly reduces post-processing costs.

III. Production & Delivery Customization

Tooling Lead Time:​ 25 business days
Prototype Batch Size:​ 5,000 pcs
Mass Production Capacity:​ 10,000 – 50,000 pcs/day
Accepted Drawing Formats:​ STEP, IGS, CAD, PDF (2D drawings), reverse engineering from physical samples.

IV. Target Applications

Hardware for bags & accessories, locks, smart wearables, timepieces, precision structural components for 3C electronics/vapes, micro surgical instruments, metal probe assemblies for aesthetic devices, specialty shaped parts for power tools, precision clips for smart home devices, automotive micro-components, custom complex freeform structures.


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