Abrasive Waterjet Machining

Area of Science:

• Engineering and Materials Science
• Manufacturing Processes

Background:

• Abrasive waterjet (AWJ) machining, developed in the 1980s, is a versatile cutting technology capable of processing nearly any material.
• The process is widely adopted in advanced manufacturing for producing critical components across various industries.

Purpose of the Study:

• To present a comprehensive overview of the AWJ machining process, including its fundamental principles and influencing parameters.
• To discuss process models for both the AWJ tool and its interaction with materials.
• To explore methods for enhancing geometrical accuracy and surface finish in AWJ-processed parts.

Main Methods:

• Detailed description of the AWJ material removal mechanism via high-velocity abrasive particle impact.
• Analysis of macro-characteristics of cut surfaces (taper, trailback, waviness) and compensation techniques like dynamic angular compensation.
• Discussion of surface finish control through cutting speed, hydraulic, and abrasive parameters integrated into CNC machine controllers.

Main Results:

• AWJ machining enables precision cutting of diverse materials (metals, glass, composites, ceramics) and thicknesses (1 mm to 600 mm).
• Specialized techniques like machine vision and vacuum-assist are crucial for microelectronic and solar cell part cutting.
• The process has been extended to various applications including drilling, milling, turning, and surface modification.

Conclusions:

• AWJ machining offers a non-thermal, non-mechanical cutting solution with high precision and versatility.
• The process is adaptable for complex shapes, edge trimming (especially for composites), and micro-scale applications.
• AWJ machining aligns with Industry 4.0 and 5.0 trends, incorporating AI and IoT for enhanced capabilities.