Of the principles involved in blanking and piercing display.

　　

　　Piece Part -A Piece Part is the Product A Die Produces, it may also be a component of a problem.

　　Stock Material -General Term Used for the Material that will be used to Produce The Piece Part.

　　

　　Punch -A Punch Can Be Described as a Male Component of a Complete Die That Acts in Conjunction with The Female Half of the Die Produce Piece Part.

　　When a Die is used to make a hole or an opening in the piece part, the operation is called piercing. The UnwAnt Material Removed by the Piercing Operation is Called the Slug.

　　

　　The piece parts, is called the scrap bridge. SEE FIGURE 1-3, Page 2.

　　The Cycle, The RAM MOVES BACK Up. The distance travelled by the ram during the first hashd has class stroke.

　　Part PRODUCTION. The function of the stripper is to keep the material from traveelling with the punch on the return stroke.

　　In TOOL MAKING, There are 3 Important Stages:

　　The Greatest Stress or Pressure is Applied to the Cutting Edges.

The remainer of the cut is the break, which is the result of the 3rd pHase of the cycle.

　　Cutting CleaRARANCE is the Space Between The Cutting Edge of the Punch and the Corresponding Cutting Edge of the Die.

　　

　　When there is exceessive clearly the punch reacts on the mateial more like a forming too much than a cutting too.

　　Material Into the Cleaarence Space of the Die Causion Large Fractures and Burrs on the Part.

　　Objectable Burrs May Appear on the Piece Part IF the Cutting Cleaarence Is Insufficient. When there is insuffital Cleaarence, The Burr is caused by composition forces.

　　The piece part will show burging to one size and this information is usedFul for the Toolmaker for detecting the misalignment.

　　

　　

　　Thickness Per size.

　　

　　Angular Cleaarence is a DRAFT OR TAPER Applied to the Sidewalls of a Die Opening, in order to, RELIEVE The Internet of the Blank or Slug as the Passes Through.

　　The Blank-Through Type of Die Will Not Run SuccessFully, Unless, there is a rellel the presenture dead with the point by the blank or the slugs as the facts.

　　Angular CleaRARANCE ShULD Be Expressed in Terms of the Amount of Cleaarence Per Side, Not as an overall or included anging allfore.