¡Aumento de la eficacia de la producción en 68%! Las brocas escalonadas personalizadas consiguen una formación de orificios multipaso de alta precisión de una sola vez.

1.Customer Background and Challenges

This customer is a leading manufacturer of precision mechanical components in China. They encountered issues while producing an automotive engine component that required machining multi-step holes on high-strength alloy steel with strict tolerance requirements (±0.02mm).

Customer Pain Points:

• Traditional processes required frequent changes of 3-4 different drill bits, increasing the processing time per piece by 15 minutes.
• Multiple tool changes led to accumulated errors in hole positioning, resulting in a defect rate as high as 8%.
• Drill bits wore out quickly, necessitating frequent stops for tool replacement, leading to high production costs.

2.SDF Customized Solution

Our technical team conducted in-depth analysis and research based on material characteristics and processing parameters to provide this customized step drill. Key advantages include:

✅ Innovative stepped structure design

Three-stage progressive cutting edges complete Ø6mm→Ø10mm→Ø12mm hole diameter machining in one operation without changing tools. Optimized internal cooling channels: Combined with a high-pressure cooling system for effective chip evacuation and reduced cutting temperatures, extending tool life.

✅ Ultra-hard material and coating technology

The substrate uses imported powder metallurgy high-speed steel with TiAlN nano-coating, achieving hardness up to HRC 68, and tripling wear resistance. (Images and videos show the uncoated state) We can customize coatings based on customer materials to prevent adhesion and chipping, enhancing tool life.

✅ Full-process quality control

Precision formed using a five-axis CNC grinding machine, ensuring step size accuracy ≤0.01mm. Dynamic balance testing ensures stability at high speeds, with spindle speed limits increased to 8000rpm.

3.Implementation Results and Customer Feedback

Comparison of actual data:

Customer Evaluation: “SDF’s engineering team completed the entire process from requirement analysis to sample verification within two weeks. The customized drill fully matches our production line parameters. Now, both production efficiency and yield meet standards, with an expected annual cost saving of over RMB 1.2 million!”

4.Why Choose Us – SDF Tools?

• Over 15 years of industry expertise: Provided non-standard tool solutions for more than 300 companies across automotive, electronics, energy sectors, etc.
• Strong R&D capabilities: Equipped with CNC simulation labs and material analysis centers, supporting customized development under complex conditions.
• Rapid response mechanism: Provide initial solution drafts within 72 hours, deliver samples within 6-12 working days.

5.Get Your Exclusive Solution Now

If you face challenges such as low efficiency and inadequate precision in multi-step hole machining, feel free to contact the SDFTools technical team!

Email: sdfgroup@sdftools.com 

Website: https://sdftools.com/