Stamping

About: Stamping is a research topic. Over the lifetime, 22501 publications have been published within this topic receiving 83554 citations.

Springback Calibration of a U-Shaped Electromagnetic Impulse Forming Process

Abstract: A three-dimensional (3D) finite-element model (FEM), including quasi-static stamping, sequential coupling for electromagnetic forming (EMF) and springback, was established to analyze the springback calibration by electromagnetic force. Results show that the tangential stress at the sheet bending region is reduced, and even the direction of tangential stress at the bending region is changed after EMF. The springback can be significantly reduced with a higher discharge voltage. The simulation results are in good agreement with the experiment results, and the simulation method has a high accuracy in predicting the springback of quasi-static stamping and electromagnetic forming.

Connector housing for contact set from punched grating

Abstract: The invention relates to an adapter for a plug-in connector and to the plug-in connector overall. The adaptor is produced by stamping out a lattice 10 from a flat metal sheet and bending over arms of the lattice to produce plug contacts 28, 30.

Comparison of Advanced SPF Die Technologies in the Forming of a Production Panel

Abstract: Superplastic forming (SPF) is a manufacturing process that can facilitate increased use of aluminum in automobile body structures. Despite considerable advantages with regards to formability and tooling costs, the process has been mostly limited to low volume production due to relatively long cycle times and the need to use specially processed sheet alloys. To address these issues, advanced processes such as two stage gas forming (TSGF) and hot draw mechanical pre-forming (HDMP) have been developed. Advantages of these processes have been demonstrated on the forming of a complex dash panel part. Final thickness distribution and forming time on this part manufactured with these two processes were compared to that of the same panel produced with conventional SPF. The HDMP technology which combines hot stamping with SPF was found to have the capability of forming a complex shaped component with a superior thickness profile and faster forming cycle than that formed with a conventional single stage or two stage forming cycle. Additionally, the HDMP process proved to be a robust process with a wide temperature window and allowed for the forming of lower-cost, non-spf aluminum, and magnesium sheet alloys. Finally, analysis of the post-form microstructure indicated that there was essentially no cavitation in panels formed with the HDMP process and that material with a coarse grain structure could be successfully formed.

Method for fixturing abutted sheet metal parts for welding

Abstract: A method and apparatus for positioning and holding a pair of sheet metal blanks to be butt welded into a compound blank for stamping a larger panel with varying thicknesses. A fixture plate is provided with locating corners matching predetermined reference corners of the blank and with mechanisms for pushing the blanks into the locating corners. The first blank is pushed into abutment with stops that are then pivoted out of the way, after the first blank is clamped in place. The second blank is then abutted with the already clamped first blank, and clamped. The loaded fixture is then transported to a weld station, where the pre positioned blanks can be quickly and efficiently laser welded.

Official seal intelligent supervision method with special supervision system

Abstract: The invention provides an official seal intelligent supervision method with a special supervision system The supervision process comprises stamping application, stamping check, the release and initialization of an official seal intelligent stamping machine, and the permission of stamping The invention also provides a system which implements the official seal intelligent supervision method The system comprises a plurality of stamping machines, a firewall, a supervision server, a supervision agency terminal and a record keeping and inquiring terminal The stamping machines of different units, the supervision agency terminal and the record keeping and inquiring terminal are in communication with the supervision server through a communication network and the firewall All official seal using behaviors are recorded by the system The results of seal using can be aggregated and collected On one hand, a set of complete and real seal using file is established, one the other hand, the real-time monitoring can be carried out or a seal using behavior which violates provisions can be discovered timely Through applying the system, an illegal seal using behavior can be deterred, various risks are avoided, and the seal management problem which puzzles a government and a corporate for a long time is effectively solved