Machining of Cummins Automotive Differential Housing

Project Background

As a global leader in engine manufacturing, Cummins relies on its differential housing as a critical component of its power transmission system, designed to withstand significant loads and performance requirements. This project aimed to provide high-precision differential housing machining services for Cummins, meeting their stringent quality standards and market demands.

Project Objectives

1.Precise Dimensional Control: Ensure that the key dimensions and tolerances of the differential housing meet Cummins’ design specifications.

2.Increased Production Efficiency: Shorten the machining cycle while maintaining quality to meet large-scale production requirements.

3.Quality Assurance: Implement a comprehensive quality control system to ensure the reliability and consistency of each differential housing.

Machining Processes

Material Selection: Utilize high-strength aluminum alloy for its lightweight properties and excellent strength performance.

CNC Machining:

1.Employ a five-axis CNC machining center for initial shaping to ensure precision in complex geometries and hole placements.

2.Use milling and turning processes to machine mating surfaces and installation holes, achieving strict dimensional tolerances.

Precision Grinding: Perform grinding on critical mating surfaces to enhance surface finish and mating precision, ensuring the stability of the differential.

Surface Treatment: Apply anodizing to improve the housing's corrosion resistance and wear resistance, extending its service life.

Quality Control

1.In-line Inspection: Conduct real-time quality checks at every machining stage to ensure compliance with standards.

2.Final Inspection: Complete products undergo thorough examination with a coordinate measuring machine to confirm that all differential housings meet design specifications.

Project Outcomes

1.On-Time Delivery: Successfully completed batch production within the scheduled timeframe, meeting Cummins' market needs.

2.High Customer Satisfaction: Products received rigorous testing and validation, earning recognition and praise from Cummins for performance and reliability.

3.Environmental Compliance: The machining processes employed environmentally friendly materials and techniques, aligning with modern manufacturing sustainability goals.