Practical design and performance of the stressed-lap polishing tool

Area of Science:

• Engineering
• Materials Science
• Manufacturing Technology

Background:

• Precision polishing is critical for optical and semiconductor industries.
• Existing polishing methods may face limitations in accuracy and repeatability.
• Development of advanced polishing tools is essential for next-generation manufacturing.

Purpose of the Study:

• To detail the engineering design of four novel stressed-lap polishing tools.
• To evaluate the empirical performance of these tools, focusing on accuracy, repeatability, and hysteresis.
• To assess the mechanical reliability of the polishing tools through metal fatigue analysis.

Main Methods:

• Detailed description of electromechanical actuators, servo systems, and computer interfacing.
• Explanation of lap attachment mechanisms to the polishing machine.
• Empirical testing of a representative tool for performance metrics and metal fatigue analysis.

Main Results:

• The engineering design and construction of four stressed-lap polishing tools were completed.
• Empirical data demonstrated the tool's accuracy, repeatability, and hysteresis.
• Metal fatigue analysis indicated a statistically low probability of aluminum lap-plate failure under worst-case conditions.

Conclusions:

• The developed stressed-lap polishing tools offer a viable solution for precision manufacturing.
• The tools exhibit reliable performance characteristics suitable for demanding applications.
• The design incorporates robust features mitigating the risk of mechanical failure, ensuring operational longevity.