为研究铝合金板件自冲铆连接过程,借助有限元方法模拟了1.15mm AA6016T4板+1.5mm AA5182O板自冲铆接头成形.计算结果与已报道实验结果一致,证明该方法是有效的.采用此方法研究了冲头和模具的受力变化,铆扣的形成以及板件翘曲变化情况.结果表明:铆钉的变形是引起冲头载荷急剧增加的关键因素;铆钉内腔的充满压实有助于铆接压力传递到铆钉内壁,促使铆钉管腿变形形成铆合;板件的翘曲主要受压边力大小和压边圈直径影响.
参考文献
| [1] | Voelkner W.; .Present and future developments of metal forming: selected examples[J].Journal of Materials Processing Technology,2000(1/3):236-242. |
| [2] | LAPENSEE M .Self-pierce riveting technology:a joining solution for light metals[J].Light Metal Age,2003,61(9-10):32-35. |
| [3] | MAYER H;VENIER F;KOGLIN K .Die ASF-Karosserie des Audi A8[J].ATZ (Automobiltechnische Zeitschrift),2002,104:94-108. |
| [4] | Gary S. Vasilash .ALUMINUM STUDIES[J].Automotive Design & Production,2003(5):34-38. |
| [5] | LIEBIG HP;MUTSCHLER J .Optimierbar mit umformtechnischer Methodik Stanznieten fügt umformend ohne Vorlochen der Bleche(Punch riveting joins sheets by forming and without prepiercing)[J].Bander Bleche Rohre,1993,34(04):46-55. |
| [6] | CHERGUI A .Beitrag zur ermüdungsgerechten Auslegung stanzgenieteter Aluminium-Leichthau-konstruk-tionen[D].Paderborn Germany:Universit(a)t Paderborn,2004. |
| [7] | FU Maofeng;MALLICH P K .Effect of process variables on the static and fatigue properties of self-piercing riveted joints in aluminum alloy 5754[SAE 2001-01-0825][R].Society of Automotive Engineering,2001. |
| [8] | Maofeng Fu;P.K. Mallick .Fatigue of self-piercing riveted joints in aluminum alloy 6111[J].International Journal of Fatigue,2003(3):183-189. |
| [9] | CAI W W;WANG P C;YANG W.Assembly dimensional prediction for self-piercing riveted aluminum panels[A].Monmouth Junction,NJ,USA:Science Press USA Inc,2004:791. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%