Abstract:
The polishing and sandpaper machine is one of the tools that works using
electrical energy. The mechanical properties of a metal or alloy can be observed,
one of which is by analyzing the microstructure of the material. Metallographic
testing is carried out aimed at observing the microstructure. in the process of
working on metallographic testing samples involving a polishing machine and
sandpaper. The formulation of the problem in making this polishing machines and
sandpaper is “What is the process of manufacturing polishing machines and
sandpaper and how much is the cost of manufacturing polishing and abrasive
machines”. Components on the engine are frame, motor, bearing, pulleys,
polished discs, reservoirs, water pumps, and water taps, while the tools and
machines used in the manufacturing process are electric welding tools, electric
grinders, sitting grinders, hand drill machines, sitting drill machines, cut levers,
riverter pliers, acetylene welding and lathes.
