The 23rd Hero Challenge is here!

This round’s theme is “Boosting the Cost-Performance of 30×D Micro Drills”, focusing on reducing tool costs and improving machining efficiency. In machining production, micro-diameter drills are both precise and fragile. How to enhance cost-performance, extend tool life, and ensure machining quality is a pressing challenge for every factory. Through this challenge, we aim to gather more technical experts and hands-on practitioners to tackle this industry pain point with practical, actionable solutions.

Challenge Details

Part Information

• Part Name: Automotive component

• Material: 4140 Molded Steel (HRC 28–32)

• Process: Drilling

• Machine Tool: Machining center

• Tool Models:

• D1.2*9.6*24*L60*SD3 Pilot Drill

• D1.2*9.6*36*L70*SD3 Deep Hole Drill

• Tool Life: Pilot drill ≥ 4000 pcs; Deep hole drill ≥ 2500 pcs

(Image: partial view of the part)

Current Situation

1. Combination of pilot drill + deep hole drill. Deep hole drills occasionally break during machining.

2. Normal life of deep hole drill: ~2500 pcs; pilot drill: ≥ 4000 pcs.

3. Machining parameters:

• Pilot drill: Drilling depth 4mm; Vc = 34 m/min (S9000); F = 230 mm/min (Q0.5)

• Deep hole drill: Drilling depth 30mm; Vc = 34 m/min (S9000); F = 230 mm/min (Q0.5)

Challenge Requirements

1. Improve cost-performance by ≥10%, with tool life stable and no less than 90% of the original.

2. Surface quality and appearance must meet drawing requirements.

3. Machining efficiency must be maintained.

Note: You may propose improvements based on the current process—or put forward entirely new, innovative machining solutions!

Join the Challenge

Want to learn more?
Scan the QR code below with WeChat to join the “Machining Technology Service Platform” community for real-time updates!

Rewards

• Supply Qualification: If your tool solution passes testing successfully, you’ll be granted at least 1 year of supply qualification.

• Cash Rewards: Submit a qualified resource and get RMB 1,000 once approved. Those who successfully help solve the problem will receive an additional RMB 5,000 reward.

How to Participate

• Scan the WeChat QR code to join the “Machining Technology Service Platform” community and share your ideas and solutions.

• Or contact us directly via phone or email:

  
  

📞 Tel: +86 177-0157-7102
📧 Email: Marketing@knowhy.com.cn

We encourage bold innovation! Whether it’s process optimization, technical upgrades, or any smart ideas to boost efficiency and quality—bring them on!

Timeline

This challenge is open-ended and ongoing.

Evaluation

All submitted solutions will be jointly reviewed by our expert team and customer engineers, assessing their innovation, practicality, and feasibility. Winning solutions will not only bring tangible benefits but also gain recognition across the industry, opening doors to more opportunities and orders.

Conclusion

Each Hero Challenge is a chance for technical exploration and practical innovation. We look forward to more machining experts and teams joining in—whether by proposing solutions, improving processes, or testing and validation. Every trial is a step in building experience, verifying solutions, and creating new possibilities.

With continuous exploration and improvement, breakthroughs in the life, precision, and cost-performance of micro drills are within reach. Let’s work together—turning every attempt into a driving force for industry progress!

Copyright Notice:
All technical materials and content mentioned in this article are the property of Knowhy and provided for reference only. They may not be used for any commercial purpose. Knowhy reserves the final right of interpretation. Any violations will result in legal action.