MIM Surface Treatment & Machining | Plating, Polishing, Heat Treatment - Precision-mim#Metal injection molding parts

Surface treatment for MIM parts includes precision heat treatment (HRC 40-62), polishing (Ra ≤0.4μm), electroplating (Ni, Cr, Zn, Sn), blackening, and passivation for stainless steel, iron-based alloys, and titanium, exceeding ASTM B117 salt spray standards. These value-added processes are performed in-house or via certified partners.

Surface treatment

Extended Capabilities Beyond Core MIM Technology

In addition to Metal Injection Molding (MIM), we implement supplementary processes to optimize post-MIM/PM components. These value-added steps are executed either in-house or through certified partners. Partial capabilities include:

Precision Heat Treatment
Customized thermal cycles (quenching/tempering) to enhance component strength (HRC 40-62) and service life.
Advanced Surface Finishing
Collaborative solutions with industry specialists:
• Precision polishing (Ra ≤0.4μm)
• Electroplating (Ni, Cr, Zn, Sn)
• Electropolishing
• Spray coating (epoxy/polyurethane)
• Black oxide conversion coating
Engineered to exceed ASTM B117 salt spray resistance standards while achieving aesthetic excellence.

Surface Treatment

Precision Tech is a leader in precision surface treatment. We offer comprehensive technologies for stainless steel, iron-based alloys, and titanium components, including vibratory grinding, sandblasting, and polishing, meeting diverse customer requirements.

Vibratory grinding and magnetic polishing

Vibratory grinding efficiently removes burrs and achieves target surface roughness. Magnetic polishing is ideal for precision parts, especially complex geometries, delivering high-gloss finishes. With 30+ specialized machines, we optimize processes for any component.

Electroplating processes

Our electroplating workshop provides functional coatings tailored to operational environments. We excel in passivation, bluing, and blackening for steel components, even in small batches.

Heat treatment

We offer quenching, surface hardening, vacuum treatment, nitriding, plasma nitriding, and annealing. Select processes are performed in-house.

Blackening process

Custom blackening enhances surface hardness and aesthetics. Specialized in steel passivation, bluing, and blackening for functional durability.

Frequently asked questions

What heat treatment capabilities are offered for MIM components?

Quenching, surface hardening, vacuum treatment, nitriding, plasma nitriding, and annealing are offered, with customized thermal cycles enhancing strength to HRC 40-62.

What surface finishing options are available?

Options include precision polishing (Ra ≤0.4μm), electroplating (Ni, Cr, Zn, Sn), electropolishing, spray coating (epoxy/polyurethane), and black oxide conversion coating.

Which materials can be surface treated?

Comprehensive technologies serve stainless steel, iron-based alloys, and titanium components.

How is salt spray resistance ensured?

Coatings are engineered to exceed ASTM B117 salt spray resistance standards while achieving aesthetic excellence.

Machining & Surface Technology