Memory Game MachinesOnline version Identify machines by Gilberto Marquez grinder 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. Machine used for smoothing, polishing or cleaning a surface, as of wood, plastic or metal. Technique used for joining metallic parts, usually through the application of heat. Uses a rotating abrasive wheel to change the shape or dimensions of a hard, usually metallic, body. Shapes pieces of wood or metal by holding and turning them against a fixed cutting tool milling 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. saw lathe drill press belt sander Device for producing holes in hard surfaces 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. punch press