Automotive Precision Parts: Core Components Empowering Vehicle Upgrading

2026-01-31

Automotive precision parts are core components that determine the performance, safety and reliability of vehicles, covering powertrain, chassis, electronics, body and other key systems. Different from ordinary auto parts, they feature ultra-high dimensional accuracy, excellent mechanical properties and stable wear resistance, with dimensional tolerances usually controlled within ±0.005mm and surface roughness up to Ra0.05μm. As the automotive industry moves towards electrification, intelligence and lightweight, the demand for high-precision, high-performance automotive precision parts is growing rapidly, becoming a key support for the upgrading of the global automotive industry. The types of automotive precision parts are diverse, each undertaking an irreplaceable functional role. In the powertrain system, precision parts such as engine crankshafts, camshafts, piston pins and transmission gears are the core of power transmission. These parts need to withstand high temperature, high pressure and long-term fatigue wear, so they are usually made of high-strength alloy steel and processed by precision forging and grinding technology to ensure stable power output and long service life. For new energy vehicles, precision parts such as motor rotors, stators, battery connecting pieces and inverte...

Production Process Of Precision Parts For Medical Instruments

2026-01-31

The production process of precision parts for medical instruments is a rigorous, technology-intensive workflow, strictly regulated by international and national medical standards to ensure ultra-high precision, biocompatibility and reliability. It covers core links from raw material selection to delivery, with strict quality control throughout. Raw material selection is fundamental, prioritizing medical-grade materials like 316L stainless steel, Ti-6Al-4V ELI titanium alloy, cobalt-chromium alloy and PEEK polymer, selected based on application scenarios. All materials have FDA, CE certifications for traceability and undergo strict incoming inspection. Pretreatment includes ultrasonic cleaning to remove contaminants, heat treatment to reduce internal stress, and surface passivation for corrosion resistance, all in a clean environment. Before mass production, CAD software designs 3D models with dimensional tolerances (±0.001mm to ±0.01mm) and surface roughness (Ra0.02μm to Ra0.4μm), while CAE software simulates processing to solve potential issues. Rapid prototyping via 3D printing (laser selective melting) or precision casting produces test prototypes, which are adjusted until meeting standards. Core machining combines precision forming and cutting. Metal Injection Molding (MIM...