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EV Motor Housing Production
Electric Vehicle Startup, USA, Texas
An electric vehicle startup needed aluminum motor housings for their new EV platform. PiPrecision developed machining process with specialized fixturing, achieving consistent Cpk > 1.67 on critical dimensions with SPC monitoring, successfully ramping from 50/month prototypes to 5,000/month production with zero PPM defects.
>1.67
Cpk
50→5K/mo
Ramp Up
Zero PPM
Defects
6 months
Duration
The Challenge
The EV startup required aluminum motor housings with tight tolerances on bearing bores, precise thermal management features, rapid production ramp from prototype to volume, and automotive-quality systems for zero defect requirements.
Our Solution
Designed machining process with specialized fixturing for complex housing geometry, implemented SPC monitoring on all critical dimensions, established Cpk > 1.67 process capability, and created scalable production cells.
The Results
Successfully ramped from 50/month to 5,000/month production, Cpk > 1.67 maintained on critical dimensions, zero PPM defects in first 6 months, established ongoing production partnership for EV platform.
Project Gallery

Project Info
- Industry
- Automotive
- Service
- CNC Milling Service
- Client
- Electric Vehicle Startup
- Location
- USA, Texas
- Completed
- October 2024
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