High-Precision Powder Metallurgy Components for Automotive Applications

High-Quality Dark Grey Powder Metallurgy Parts

These are dark grey powder metallurgy components featuring a cross-shaped overall structure, with a central cylindrical wave and a gear wheel attached at one end. The tooth profile is uniform, the surface is smooth, and the mechanical processing accuracy is excellent. Manufactured using high-quality iron powder as the base material and advanced powder die casting technology, these parts deliver superior performance and dimensional consistency:

Manufacturing Process Overview

1. Die Filling & Compaction: Precisely measured and sieved iron powder is evenly loaded into a customer-specific mold. High-pressure die casting equipment compacts the powder particles firmly within the cavity, forming a complete part in a single operation. This reduces subsequent machining allowances and material waste significantly.
2. Sintering: After forming, the compacted billet is transferred to a specialized high-temperature sintering furnace. Precise control over sintering temperature, holding time, and cooling rate ensures strong metallurgical bonding between iron particles, transforming the loose powder into a dense, mechanically stable solid structure with enhanced physical properties.
3. Precision Machining & Surface Treatment: Once sintered, the raw part is machined on a high-precision CNC Turning machine to achieve exact dimensions at both ends. Strict inspections are conducted to verify dimensional tolerances and positional accuracy, ensuring full compliance with assembly requirements. Finally, the finished component undergoes black oxide surface treatment, creating a dense protective layer that enhances resistance to rust and corrosion, improves surface wear resistance, and extends service life.

Dongguan Shengpeng Precision Technology Co., Ltd. specializes in professional powder metallurgy solutions. We offer customized part sizes, a wide range of metal powders—including iron, copper, and stainless steel—and various surface treatments to meet diverse application needs. Our high-performance powder metallurgy products are widely used in automotive, machinery, electronics, and other industries—whether for small-scale prototypes or large-volume production runs. We welcome inquiries and collaboration at any time.