over again. Robots are well suited for this work. SPRAY FINISHING Spray finishing includes the application of paint, enamel, polyurethane, and other protective materials. Human workers must hold the gun a certain distance and angle from the surface. Also, he must move the gun continuously to prevent dripping. The painter uses his own judgment regarding a good finish. Because of this, products are never identically finished. The spray finishing environment is one of the most noxious for humans to work in. Fumes from solvents are toxic and sometimes carcinogenic. There is a hazard of fire since finishes are flammable, and noise from air discharge can damage hearing. In the automotive industry, robots are use to paint cars, but cannot paint all of it. Operators must finish the job after the robots have done what they can. The risk of fire demands the hydraulic robots rather than the electric driven robots. Since robots move more smoothly than humans, the paint coat will be more consistent. Also, robots can be programmed to switch colors. Spray finishing robots cut costs because they require less light, reduce fresh-air requirements, reduce exhaust, and lesson energy costs. Since robots can operated in isolated areas, fewer particles stick to coated surfaces as they dry. The isolated environment also means no ventilation or noise elimination is necessary. ASSEMBLY AND INSPECTION Robots can bolt or screw pieces together depending on the job needed. The assembly lines move fast, so robots are well suited for the job. The robots move fast and take only one or two seconds to fit pieces together. Inspection robots fit pieces into a mold to see if they fit correctly. If the piece doesn't fit the robot rejects or signals a warning. Robots can rotate pieces to see if they fit and can change angles. Some advanced robots scan the pieces as they go by on a conveyor belt. The rob...
