A professional who operates reciprocating power hammer to smooth and shape sheet metal used in manufacturing aircraft and aerospace products according to specifications. Respnsibilities include:

• Reads blueprints and work orders to determine machine setup.
• Installs dies in machine according to surface contours, size, and thickness and hardness of metal to be shaped.
• Adjusts drive arm to regulate striking force of hammer.
• Applies lubricants to surfaces of metal and dies to prevent marring.
• Starts machine motor and depresses pedal to start action of hammer.
• Moves metal under hammer to attain specified shape.
• Observes metal during shaping to detect wrinkles and other defects.
• Compares finished part with template or sample part to verify conformance to specifications.
• Shapes part partially formed by machine to specified dimensions, using handtools.
• Trims excess materials from edges of parts, using shears.
• May push weighted roller over metal to smooth surfaces.