Memory Game MachinesOnline version Identify machines by Gilberto Marquez saw lathe Machine used for smoothing, polishing or cleaning a surface, as of wood, plastic or metal. Shapes pieces of wood or metal by holding and turning them against a fixed cutting tool Changes the size or shape of a piece of material, usually sheet metal, by applying pressure to a die in which the workpiece is held. Technique used for joining metallic parts, usually through the application of heat. welding Tool for cutting solid materials to prescribed lenghts or shapes. Most of them take the form of a thin metal strip or disk with teeth. grinder milling belt sander drill press Machining process of using rotary cutters to remove material from a workpiece by advancing or feeding the cutter into the workpiece at a certain direction. Device for producing holes in hard surfaces Uses a rotating abrasive wheel to change the shape or dimensions of a hard, usually metallic, body. punch press