List the concerns you would have if you needed to economical

List the concerns you would have if you needed to economically machine carbon-fiber reinforced
polymers or metal-matrix composites with graphite fibers in an aluminum matrix.

Solution

Carbon-fiber reinforced polymers or metal-matrix composites with graphite fibers in an aluminum matrix are most commonly machined using milling, drilling and waterjet cutting. In milling and drilling, the wear and tear of the tool needed to machine will be very high resulting in frequent replacement of the tool. This would shoot up the cost of machining . Also frequent tool change would increase the cost of labour assosciated with the process of tool changing and reduces the production time as well as productivity.Finding an optimum between a minimized cutting edge rounding and sufficient coating adhesion is also a big challenge.In water jet machining, elaborate microfiltration before and the treatment and disposal of water after machining would be required. Furthermore the workpieces must be frequently cleaned or dried after machining.