In-process control of blank holder force in axi-symmetric deep drawing with degressive gas springs

Journal of Materials Processing Technology

Volumn 73, Issue 1-3, 1998, Pages 89-96

  Gunnarsson, Lars ^a   Asnafi, Nader ^a   Schedin, Erik ^a  

^a SWEREA KIMAB   (Sweden)

Author keywords

BHF trajectory; Blank holder system; Gas springs; Rephosphorized steel

Indexed keywords

EMULSIONS; FORCE CONTROL; FRACTURE; PRESSING (FORMING); SPRINGS (COMPONENTS); STEEL; TOOLS;

AXISYMMETRIC DEEP DRAWING; BLANK HOLDER FORCE TRAJECTORY; BLANK HOLDER SYSTEM; GAS SPRING; LIMITING DRAWING RATIO; REPHOSPHORIZED STEEL; WATER EMULSION; WRINKLING;

DEEP DRAWING;

EID: 0031646491     PISSN: 09240136     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0924-0136(97)00217-3     Document Type: Article

References (4)

1. N. Asnafi, The influence of in-process variation of blank holding force on deep drawability, literature study, Swedish Institute for Metals Research, IM-3169.
2. N. Asnafi, The influence of in-process variation of blank holding force on deep-drawability, presented at METALFORM 1995, Worldclass Productivity Exposition and Symposium, arranged by Precision Metalforming Association (PMA), Chicago, 15 March 1995, pp. 965-976.
3. K.W. Blümel et al., Computer driven variable blankholder, Proc. Working Group Meetings of the Int. Deep Drawing Res. Group, IDDRG, Pisa, Italy, 7-9 May 1991.
4. K. Manabe, H. Nishimura, An improvement in deep drawability of steel/plastic laminate sheets by control of blank holding force, in: K. Lange (Ed.), Proc. 2nd Int. Conf. Tech. Plasticity, Vol. II, Stuttgart, 24-28 Aug. 1987, pp. 1297-1304.