Closed loop springback control in progressive die bending by induction heating
Closed loop springback control in progressive die bending by induction heating
复制标题
感应加热级进模弯曲中的闭环回弹控制
DOI:
10.1007/s12541-015-0314-8
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发表时间:
2015
影响因子:
1.9
通讯作者:
Tekkaya
中科院分区:
文献类型:
--
作者:
Löbbe;Becker;Tekkaya
Large springback of high strength steels in progressive dies hinders accurate manufacturing because a proper prediction of elastic unloading is not possible due to material variations, tool wear, and varying ambient conditions. In order to compensate springback and enhance the forming limit when brittle materials are bent, a warm bending technology for progressive dies through inline induction heating is developed. Within a certain temperature range, there is a linear relation to the springback angle, which allows a direct influence on the final bending angle. Based on this principle, a closed loop control with a feedback of the angle after unloading is implemented, which adjusts the sheet temperature before bending. With the developed discrete controller, finally a stable and fast control mode is achieved so that an initial deviation from the target value is reduced to less than Δθ = ±0.30°.
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DOI:
--
发表时间:
1993
期刊:
影响因子:
--
作者:
Martin Müller
通讯作者:
Martin Müller
影响因子:
4.1
作者:
Neugebauer, R.;Altan, T.;Sterzing, A.
通讯作者:
Sterzing, A.
DOI:
10.1016/s1003-6326(09)60426-x
发表时间:
2010-11
影响因子:
4.5
作者:
T. Welo;B. Granly
通讯作者:
T. Welo;B. Granly
DOI:
--
发表时间:
1988
期刊:
影响因子:
--
作者:
F. Pourboghrat;K. Stelson
通讯作者:
K. Stelson