Precision Wire EDM Internal Gear Manufacturing of 0Cr13Ni8Mo2Al Maraging Steel (Z59, Module 0.8)

This high-precision internal gear assembly is custom-manufactured by Xincheng Precision, crafted from 0Cr13Ni8Mo2Al maraging steel. Widely deployed in high-end transmission systems, industrial robots and automated equipment, the component requires stringent controls over gear profile accuracy, dimensional stability and heat treatment performance.

Xincheng Precision forms the internal gear via Wire EDM machining. Unlike conventional gear shaping, this process requires no custom cutting tools and enables direct processing from CAD drawings, making it ideal for prototype development, low-volume trial production and parts with intricate gear tooth geometries.

Product SpecificationsItem Name: Internal Gear Z59 (Module 0.8)

Material: 0Cr13Ni8Mo2Al Maraging

Steel Module: 0.8

Number of Teeth: 59

Pressure Angle: 20°

Gear Precision Class: Grade 7 per GB/T10095.1-2001

Heat-Treated Hardness: HRC 45~50

Machining Tolerance: ±0.005 mmWhy Choose Wire EDM for MachiningFor this internal gear featuring Module 0.8 and 59 teeth, conventional gear shaping demands custom-made dedicated cutting tools, leading to lengthy lead times and high tooling costs. Any revision to gear geometry parameters requires complete remanufacturing of tooling.

Wire EDM eliminates custom tooling requirements; production can commence immediately upon CAD drawing revision, perfectly fitting new product R&D, structural verification and low-volume pilot runs. Furthermore, the process is capable of machining fully heat-treated high-hardness material, reliably securing superior tooth profile accuracy and consistent dimensional uniformity across parts.

Machining Challenges1. High material strength: 0Cr13Ni8Mo2Al is high-strength maraging steel with post-heat-treatment hardness ranging from HRC45 to 50.

2. Deep-cavity internal gear configuration: The deep tooth cavity places strict requirements on wire stability and debris removal performance during machining.

3. Strict uniformity for gear profile: Consistent tooth pitch, tooth thickness and tooth contour must be maintained to guarantee precise meshing performance in subsequent assembly.

4. Dimensional control after heat treatment: Heat-induced deformation and finishing stock allowance need comprehensive calculation and compensation in process planning.

5. Heat Treatment SpecificationSolution Treatment: Soak at 925±15℃ for minimum 30 minutes, followed by oil quenching or air cooling. Aging Treatment: Soak at 510±5℃ for 4±0.25 hours, then air cool to ambient temperature. Required Final Hardness: HRC 45~50.

This heat treatment procedure delivers outstanding tensile strength, toughness and dimensional stability of the workpiece.

Application Fields· Reducer assemblies for industrial robots

· High-precision transmission systems

· Automated equipment

· Aerospace components

· Precision measuring instruments

· High-end equipment manufacturing

FAQ

Q1: What accuracy can be achieved for the internal gear? A: Normally dimensional tolerance can be controlled within ±0.005 mm.

Q2: Is post-heat-treatment machining available? A: Yes. Wire EDM processing is not restricted by workpiece hardness.

Q3: Why is Wire EDM suitable for prototype development? A: No custom cutting tools required; production can be carried out simply by updating CAD drawings.

Q4: Can inspection reports be provided? A: Full set of dimensional inspection reports is available upon request.

Q5: Do you accept small-batch orders? A: Custom single-piece samples and low-volume mass production are both available.

About Shenzhen Xincheng Precision Technology Co., Ltd.Shenzhen Xincheng Precision Technology Co., Ltd. specializes in Wire EDM, precision metal component machining, internal gear & internal spline fabrication, micro-hole machining, carbide part processing and precision fixture manufacturing. We have long-term service experience across industrial robotics, automation equipment, medical devices, aerospace and high-end equipment manufacturing sectors.