Optimization Design of Flash Structure for Forging Die Based on Kriging-PSO Strategy

An, Zhiguo; Zhou, Jie

doi:10.1007/978-3-642-13495-1_46

Cited by 2 publications

(3 citation statements)

References 9 publications

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“…Zhang et al investigated a novel flash structure with resistance wall and its effects on the forging load and die wear. They concluded great influence of the proper resistance wall on the forging load and die wear [9]. Recently Langer et al studied a movable slash gap in hot forging [10].…”

Section: Et Al Proposed An Upper Bound Elemental Technique (Ubet) Tomentioning

confidence: 99%

Flash Gap Optimization in Precision Blade Forging

Mirahmadi¹

2017

IJMERR

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The main process for manufacturing of compressor blade made of titanium alloys is forging. In the precision forging, airfoil dimensions are made to the net shape and formation of a flash around the forging ensures the complete die filling. Some factors such as flash gap dimensions affect the accuracy of the forged blade. The elastic die deflection during the forging results in airfoil thickness error. In this paper, effects of flash gap dimensions and forging parameters on elastic die deflection are studied by an experimentally verified finite element method (FEM) model. These effects are analyzed by the response surface method (RSM). The results show that by selection of appropriate flash gap dimensions as well as the process temperature and die speed, acceptable forged blade dimensions can be achieved.  Index Terms-blade forging, elastic die deflection, flash gap dimensions, precision forging

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Section: Et Al Proposed An Upper Bound Elemental Technique (Ubet) Tomentioning

confidence: 99%

Flash Gap Optimization in Precision Blade Forging

Mirahmadi¹

2017

IJMERR

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“…The traditional flash gutter is replaced by the resistance wall which kept the parallel land but changed the cave to the wall. The resistance wall combines the advantages of the flash gutter with parallel land and with wedged land: it can provide the horizontal resistance by means of the slope of wall and avoid the trimming difficulty with the parallel land instead of the wedged land [5].…”

mentioning

confidence: 99%

“…3 Fig. 6 The resistance wall structure [5] Fig. 7 The simulation result of finish-forging with resistance wall Because of the finish-forging with resistance wall have characters of flashless die forging, the forming load would greatly increase when the parameters of the resistance wall is improper.…”

mentioning

confidence: 99%

Numerical Simulation and Process Optimization of the Die Forging for the Center Wedge of the Railway Freight Car Buffers

2011

AMR

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Aiming at the center wedge of the railway freight car buffers, the forging process was analyzed and the die design was optimized. The direct finish-forging process after pre-forming process was contrasted with the finish-forging after pre-forging based on pre-forming process, and the influence of different billet sizes and die structures on the forming were analyzed and compared. To validate the different process scheme and die structure, the numerical simulations were done using FEM software deform3D. The results show that the filling capacity of billet to die cavity increases greatly by using direct finish-forging process and finish-forging die with the resistance wall and the utilization coefficient of materials is improved. This can reduce working procedure and improve the productivity.

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Optimization Design of Flash Structure for Forging Die Based on Kriging-PSO Strategy

Cited by 2 publications

References 9 publications

Flash Gap Optimization in Precision Blade Forging

Flash Gap Optimization in Precision Blade Forging

Numerical Simulation and Process Optimization of the Die Forging for the Center Wedge of the Railway Freight Car Buffers

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