Project Overview
A power tool manufacturer required ergonomic housings and soft-touch grips for their professional tool line. The project demanded high impact resistance, vibration dampening, and comfortable user experience.
Challenge
The primary challenges included:
- High Impact Resistance: Must withstand drops and rough job site use
- Vibration Dampening: Reduce user fatigue from tool vibration
- Ergonomic Design: Comfortable grip for extended use
- Overmolding: Soft-touch TPE over rigid ABS core
- Chemical Resistance: Resistance to oils, solvents, and sweat
Solution
Our engineering team developed a comprehensive solution:
2K Molding Process
- Rigid ABS core for structural strength
- TPE (Thermoplastic Elastomer) overmold for soft-touch feel
- Chemical bonding between materials for durability
- Optimized overmold thickness for comfort and durability
Design Optimization
- Ergonomic grip geometry based on hand anthropometry
- Textured surfaces for improved grip
- Vibration-dampening material selection
- Wall thickness optimization for strength and weight
Quality Systems
- Impact testing per tool industry standards
- Vibration testing under operating conditions
- Adhesion testing for overmold bonding
- Chemical resistance verification
Results
The project exceeded all targets:
| Metric | Target | Achieved |
|---|---|---|
| Annual Volume | 100K units | 200K+ units |
| Vibration Reduction | 25% | 40% |
| Field Failures | <1% | 0% |
| User Comfort Rating | 8/10 | 9.5/10 |
| Drop Test Pass Rate | 95% | 100% |
Key Success Factors
- 2K Expertise: Precision overmolding with excellent material bonding
- Ergonomic Design: User-centered design approach
- Durability Focus: Rigorous testing for job site conditions
- Quality Control: Comprehensive validation before production
Customer Testimonial
“CoreLMould’s 2K molding capabilities transformed our power tool line. The soft-touch grips reduced vibration by 40% and user comfort ratings increased significantly. Zero field failures in 200K+ units.”
- Product Manager, Power Tool Manufacturer