Forging of the "lock-bolt"

To lock-bolt manufacturing was selected technology of die forging. Lock-bolt is made of 11375 steel in a series of 2700 pieces per year. With the use of literary studies and practical knowledge has been developed technological process fittings. It includes the draft instrument stainless steel 19663 including drawings. Forging is performed on a hydraulic-pneumatic hammer KJH 2 with a nominal value of 20 kJ impact work. Blanks are cut from bars 30 mm 6 m long to bars 52.2 mm long. The techno-economic evaluation shows that the price of a forging is 4,71 CZK and for production will be need 24 pieces of bars