Stamping

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

Sheet metal forming using FDM rapid prototype tool

Abstract: Purpose – The purpose of this paper is to investigate usage of fused deposition modeling (FDM)-based sheet metal tooling for small lot productions as a real case. FDM-based sheet metal tooling was used for stamping prototype parts for two different materials to evaluate dimensional conformance. Design/methodology/approach – The experimental process of data capture used the following steps: sheet metal parts were stamped and optically scanned at every 10th interval for both DC04 and S355MC material. FDM-based upper and lower dies were optically scanned at 1st, 51st and 101st intervals. Dimensional conformance analyses were carried out by using scanned data to evaluate the behavior of FDM dies against DC04 and S355MC materials in terms of geometric deviation. Findings – Satisfactory results were obtained for DC04 material by using FDM-based tooling, and overall deviation was at an acceptable level in terms of production tolerance. S355MC material is harder than DC04 and results were not convenient in terms ...

Circuit arrangement on a support film

Abstract: The circuit arrangement has at least one electrically, cut conductor track on at least one surface of a support film, the support film being free of deformations and fluctuations in the thickness, both in the region of the conductor track covering it and outside this region. The edges of the conductor track have a projection in the form of a stamping burr. A negative circuit is applied to a stamping substrate or embossed in the latter by means of embossing dies or punching tools constituting a block; the conductor track representing the remaining positive circuit is transferred to the support film.

Design and Testing of a Thin-Flexure Bistable Mechanism Suitable for Stamping From Metal Sheets

Abstract: We present a new technique for fabricating compliant mechanisms from stamped metal sheets. The concept works by providing thinned segments to allow rotation of flexural beams 90 deg about their long axis, effectively providing a flexure as wide as the sheet's thickness. The method is demonstrated with the design and fabrication of a metal bistable mechanism for use as a threshold accelerometer. A new model based on elliptic integral solutions is presented for bistable mechanisms incorporating long, thin flexures. The resulting metal bistable mechanisms are tested for acceleration threshold sensing using a drop test and a vibration test. The mechanisms demonstrate very little variation due to stress relaxation or temperature effects. The force-displacement behavior of a mechanism is also measured. The mechanisms' switching force is less than the designed value because of out-of plane motion and dynamic effects.

Automated dimpling apparatus

Abstract: An apparatus is disclosed having one or more punching or stamping tools and a corresponding number of support tools for mating with each punching or stamping tool. The apparatus is adapted to form dimples, impressions, cuts, apertures or otherwise similarly modify the surface of a sheet metal blank, and in which the punching and support tools are both movably provided along a supporting structure formed from two elongated and parallel spaced beam members. Each beam member supports one of the punching tool, or stamping tool, and the support tool in a spaced relationship whereby the tools may be aligned and activated in punching or stamping operation to punch or stamp a portion of a blank positioned therebetween. A conveyer is provided to move the blank between the tools so that the portion of the blank to be modified is moved to a position intersecting the path of movement of the punching or stamping tool and the supporting tool. The advancement of the blank on the conveyor and/or the movement of the punching or stamping tool and the support tool along the supporting structure is controlled so that dimples, apertures, and the like may be formed at any desired portion of the blank.

Smart card connector module

Abstract: A smart card connector module (2) comprises two rows of (10,12) of terminals (6,8) stamped and formed from a single piece of sheet metal and interconnected by a carrier strip (14). An insulative housing (4) may either be overmoulded or assembled to the carrier strip (14), the terminals subsequently being electrically disconnected by stamping away portions (42) of the carrier strip through windows (40) provided in the housing. Manufacturing of the module is thus particularly cost-effective.