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Study on Water-Jet-Guided Laser-Ultrasonic Grinding Hybrid Processing Technology for SiCf/SiC Composite Materials
Guanting Yu1, Dahai Zhang1, Xianjun Pei1
1School of Mechanical Engineering, Southeast University (SEU), Nanjing 210096, China.
Materials (Basel, Switzerland)
|June 12, 2026
Summary
A new hybrid machining process combines water-jet guidance and ultrasonic grinding for superior drilling of ceramic composites. This method enhances efficiency and hole quality, overcoming defects from single-process techniques.
Area of Science:
- Materials Science
- Manufacturing Engineering
- Composite Machining
Background:
- Ceramic matrix composites (CMCs) present machining challenges like cracking and low efficiency.
- Existing methods such as ultrasonic grinding and water-jet guidance have limitations in processing CMCs.
Purpose of the Study:
- To develop and evaluate a hybrid water-jet guidance-ultrasonic grinding process for CMCs.
- To improve machining efficiency and hole quality in SiCf/SiC composites.
Main Methods:
- Drilling SiCf/SiC composite materials using three methods: water-jet guidance, ultrasonic grinding, and hybrid process.
- Investigating the impact of different processes and parameters on hole surface quality and machining efficiency.
Main Results:
- The hybrid process effectively mitigated defects like crazing, chipping, heat-affected zones, and recast layers.
- Achieved superior results compared to single processes: hole diameter deviation <0.017 mm, surface roughness Sa < 1.837 μm, and efficiency of 5.25 min/hole.
- Significantly removed surface oxides generated by water-jet-guided machining.
Conclusions:
- The hybrid water-jet guidance-ultrasonic grinding process offers a viable solution for high-quality, efficient machining of CMCs.
- This composite approach significantly enhances both processing efficiency and hole wall quality.
- Addresses critical issues in CMC component manufacturing, enabling advanced applications.
