Besides surface treatments such as sandblasting, oxidation, and polishing, there are other processing methods. For example, Chenju Precision commonly uses the following methods:

Heat Treatment of Parts:

1. Quenching and tempering, HRC 50-55.

2. Medium carbon steel: 45 or 40Cr parts undergo high-frequency quenching, tempering at 350-370℃, HRC 40-45.

3. Carburizing depth 0.3mm.

4. High-temperature aging treatment.

Technical Requirements After Precision Machining:

1. Finished parts should not be placed directly on the ground; necessary support and protection measures should be taken.

2. The machined surface must not have rust, borers, or defects such as dents or scratches that affect performance, lifespan, or appearance.

3. For roll-finished surfaces, there should be no peeling after roll forming.

4. Parts after the final heat treatment process should not have oxide scale on the surface. The mating surfaces and tooth surfaces after precision machining should not be annealed.

Part Sealing Treatment:

1. All seals must be thoroughly soaked in oil before assembly.

2. Before assembly, strictly inspect and remove any sharp edges, burrs, and foreign objects remaining from machining. Ensure the seals are not scratched during installation.

3. After bonding, remove any excess adhesive.

Chenju Precision specializes in precision parts machining services, providing 3-axis, 4-axis, and 5-axis CNC machining, mill-turn machining, CNC lathe machining, and small-batch parts machining services. We excel at machining complex workpieces and can customize special fixtures and jigs for projects. Each product undergoes at least four full inspection processes, achieving a 99.93% quality pass rate. We provide high-quality small-batch customized machining services, with 3-day sampling and 7-day delivery.

If you have future projects requiring precision parts machining, please send your drawings to this email address for an evaluation and quote: info1@us.cjcncmachining.com