The CNC Turret Punching Process
CNC Turret and Laser Fabrication Turret presses, likewise recognized as CNC punch presses are especially suited for low to medium volume production runs. CNC presses are the workhorse for “soft-tooled” manufacturing and are extensively used by users of PMA’s Metal Fabricating Division. Their flexibility and speed are continually being greatly improved, boosting the run numbers for which they are the most cost-effective choice when compared with dedicated stamping press tooling and processes. Intermediate-sized units may hold up to 60 tools, have up to 30-ton press capacity, and normally use a table of 50 in. (1.3 m) Square. Bigger machines carry as many as 72 tools, provide up to 50 tons of capacity, and feature table sizes as large as 60 in. (1.5 m) x 70 in. (1.8 m). Working speeds range from 80 to about 300 hits per minute (hpm). This evaluation is based on the one-inch movement of workpiece material in between each “hit” or work stroke. In practice, the greatest functioning spe...