Micro-hole Formation Characteristics of C35600 Alloy Using Laser Drilling

Micromachining is a very important facet of manufacturing capable of creating multiple complex components of intricate geometry. It is widely used to create 3D micro-components from sheets of metal or slices of silicon, a few examples are micro-sensors and micro-actuators. Millions of micromachined components are used in automobiles, factories, robots, and more. Laser micromachining, in particular, is very useful for machining a variety of different materials like glass, plastics, and different types of metal that otherwise cannot be machined using traditional machining processes. Additionally, as laser micromachining is a non-contact process, it is highly precise and provides fast and efficient cutting process via the mechanism of ablation. This project's goal is to search the ideal sets of parameters to provide effective, high-quality machining by analysing the impacts of various parameters of laser micromachining process on the MRR, heat impacted zone, and kerf width.. Experiments were conducted in the Hastelloy workpiece of thickness 0.15 mm using a fibre laser with a laser width of 10 μm by varying input parameters such as frequency, number of passes, power, and scanning speed. A hexagon pattern with 200 μm size was cut in the Hastelloy samples.