Hot forging Rule based DFM analysis for forging
1 hot forging 1.1 advantages 1.2 disadvantages 1.3 cold forging 1.3.1 advantages 1.3.2 disadvantages 1.4 categories of tolerances 1.4.1 group 1 1.4.2 group 2 1.4.3 group 3 1.4.4 group 4 1.5 deviations of forms 1.6 design procedure 1.6.1 information required forger 1.6.2 preparation 1.6.3 indication of dimensions on drawings 1.6.4 indication of tolerances on drawings 1.6.5 importance of drawings 1.7 processes 1.7.1 open-die drop-hammer forging 1.7.2 impression-die drop-hammer forging 1.7.3 design of impression-die forgings , tooling 1.7.4 press forging 1.7.5 upset forging 1.7.6 automatic hot forging 1.7.7 roll forging 1.7.8 net-shape , near-net-shape forging 1.7.9 equipment hot forging hot forging defined working metal above recrystallization temperature. main advantage of hot forging metal deformed strain-hardening effects negated recrystallization process. advantages disadvantages cold forging cold forging defined working metal below recrystallization temperature, around room temperat...