Powder Metallurgy Lock Parts

The lock tongue is the core moving part of a lock, directly determining security and service life. This product is manufactured by powder metallurgy compaction process: metal powder is pressed into shape in a precision die under high pressure, then sintered at high temperature to metallurgically bond particles, obtaining a high-density, high-strength lock tongue blank. Subsequent heat treatment (quenching + tempering) and sizing are applied to achieve required dimensional accuracy and mechanical properties.

Powder metallurgy is particularly suitable for lock tongues due to their complex shape and large batch size. It enables one-piece forming of slopes, slots, and guide structures, reducing machining and cost. We use iron-based alloy (Fe-Cu-C) or stainless steel powder, with density up to 7.0-7.4 g/cm³, tensile strength 500-800 MPa, and hardness adjustable (HRC 25-45). Surface treatments include black oxide, zinc plating, polishing, etc., meeting different anti-rust and appearance requirements.

Product Parameter (Specification)

Product Feature And Application

High Strength: Powder metallurgy compaction yields high density and tensile strength up to 800 MPa, meeting lock security requirements

High Precision: Precision die forming ensures excellent dimensional consistency and smooth assembly

Complex Shape in One Piece: Slopes, slots, and guide holes formed in one pressing, reducing machining

Wear & Corrosion Resistance: Stainless steel or plated surfaces available for different environments

Cost Advantage in Mass Production: Unit cost much lower than machining

Material Versatility: Iron-based, stainless steel, alloy steel, etc.

FAQ

Q1Are you a trading company or a manufacturer?

A1We are a manufacturer with our own R&D center and production base in Nansha, Guangzhou. We specialize in powder metallurgy (PM) and metal injection molding (MIM) components.

Q2What relevant qualifications and certificates do you have?

Q2We hold IATF 16949:2016 for automotive quality management, ISO 9001:2015 for quality management, ISO 14001 for environmental management, and multiple invention patents.

Q3Do you make custom products? What should I provide?

A3Yes, we offer full custom manufacturing from design to production.  We can produce according to your specifications, drawings, or samples.To start, please provide at least CAD drawings (2D) or 3D models (e.g., STEP, IGES, Pro/E). Our engineering team will then conduct DFM analysis and propose optimized solutions.

Q4What's the main products in your factory?

A4We specialize in precision metal components made through Metal Injection Molding (MIM) and Powder Metallurgy (PM). Our key products include:

Meat grinder plates & blades ,Gears (spur, helical, bevel, etc.),Porous (oil-impregnated) bearings,VVT rotors & stators,Chainsaw clutches,Structural parts & brackets,Lock components,SIM card slots & electronic housings,And other custom precision parts.

Q5How long it will take on customized samples production?

A5After we confirm the final drawings, the mold will take approximately 18 days, and samples will be delivered within 7 days. We will provide 20-30 samples for your testing, with  sampling period of approximately 25 days.

Production Details