HYR hyrcnc Intelligent CNC Solutions

Case Study

High-speed Machining of Aluminum Transmission Housing

High-speed machining of aluminum transmission housings for automotive batch production.

aluminum transmission housing machiningcnc machine for automotive partsvmc850 automotive machining
High-speed Machining of Aluminum Transmission Housing

Case Overview

Core project data for this machining case.

Industry Automotive
Application Transmission housing
Material Aluminum alloy
Machine Model HYR VMC850
Controller Fanuc / Siemens / Mitsubishi
Spindle Speed 12000 rpm
ATC Capacity 24-60 tools
Travel X/Y/Z Project based
Tolerance +/-0.01 mm
Surface Finish Ra 1.6
Cycle Time 16 min
Production Volume 1800 pcs/month
Country Mexico

Customer Background

Production context behind the case.

This project comes from a Automotive manufacturing requirement for Transmission housing. The buyer needed stable machining quality, repeatable inspection results and a machine configuration suitable for real production rather than a one-time sample.

Machine Selection

Why this machine configuration was selected.

HYR-CNC selected the machine plan around part size, material, tolerance, surface finish, tool capacity and expected production volume. The recommended setup focuses on rigidity, spindle stability, fixture access, tool change efficiency and inspection control.

Problem

Machining problem to solve

Thin walls caused vibration Multiple bores required coaxiality Batch output required reliable fixtures

Solution

HYR-CNC machining plan

Stable bearing bore accuracy Shorter cycle time Repeatable drilling and tapping

Machine Used

Recommended machine configuration

Machine: HYR VMC850
Spindle: High-speed spindle for stable finishing
ATC: Automatic tool changer for multi-process machining
Controller: Fanuc / Siemens / Mitsubishi options
Coolant: High pressure coolant and chip evacuation

Process

Timeline from raw material to inspection.

01 Raw Material Preparation
02 Rough Milling
03 Semi-finishing
04 Precision Boring
05 Drilling & Tapping
06 Inspection

Result

Before and after machining improvement.

ItemBeforeAfter
Tolerance+/-0.025 mm+/-0.01 mm
Cycle Time22 min16 min
Surface FinishRa 3.2Ra 1.6

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