Mathematical Problems in Engineering / 2014 / Article / Fig 1

Research Article

Modeling and Optimization for Piercing Efficiency and Energy Consumption Based on Mean Value Substaged KELM-PLS and GA Method

Figure 1

Definition of the parts for piercing process.
(a) The start of the primary unstable piercing stage
(b) The end of the primary unstable piercing stage
(c) The end of the stable piercing stage
(d) The end of the secondary unstable piercing stage

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