A MODIFIED METHOD FOR LATERAL SPREAD IN THIN STRIP ROLLING | ||||
| ERJ. Engineering Research Journal | ||||
| Article 4, Volume 24, Issue 4, October 2001, Page 71-82 PDF (582.67 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/erjm.2001.71133 | ||||
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| Abstract | ||||
| A rolling method lo increasc [he width of the metal would 'twx advantages lnulii pass strip pr ndtlctiol~? giving high producl i vii y and control of ;exmrc oi. planz- aisotropy. In coi~vei~tioional flat rolling, however. it is ilifkiilt to produce metal fl~w iin the lateral direction. A new method tor spread rolling has bee^ proposed in .the literature, in which severai portions of strip width are roiied between a roll that has 22a11y circumferential grooves and a fiat roll. In the present work, new modifications in roil profile and rlurrlhrr of grooves are irlinduced. The advantages of the new 1.r- AS? A UL~ are e iiiiough rolling of pure commercial alumimm sti-ips. It is found that a strip of 70 mrn wide and I mm thickness twc been widened up to 3.1% under a reduction c;f 35%. It is tbuzd also that the planar anisotropy decreases. A special pur;lvsr nonlinear ilrde element progrm has been developed to deal with continuous change of contact berween the roll and the strip in each roiling pass. The calcuimd smin tensor is utilized to investigate the iocdi~eci necking. | ||||
| Keywords | ||||
| Spread rolling; Planar aliisoiropy; Tliin strip ioll ing; Finite element mode1 ling | ||||
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