Material handling of compliant parts is one of the most critical and underresearched problems in the sheet metal stamping industry. The fundamental shortcoming of currently studied material handling systems for sheet metal stamping is the lack of analysis of its impact on part dimensional quality and production throughput. This paper addresses this problem by development of a generic methodolog...

LIGO's mission critical timing system has enabled gravitational wave and multi-messenger astrophysical discoveries as well the rich science extracted. Achieving optimal detector sensitivity, detecting transient waves, especially localizing sources, underpinning of astrophysics, all require proper data time-stamping. Measurements relative arrival times waves between different detectors allow for...

In this research, the approaches of feature stamping design and Artificial Neural Networks (ANN) are combined to automate the process planning task and to generate process groups for set-ups. The model created in Computer Aided Process Planning (CAPP) system can provides different process using ANN for cylindrical parts. This model is composed by three principal modules, the first relates to ge...

The 3D moldability of veneers, as opposed to the moldability of plastic or other materials, is limited because of the characteristics of wood. By mechanical treatment under appropriate conditions, it is possible to partially modify veneer characteristics. In this study, the intention was to determine the effect of factors influencing the 3D moldability of veneers. Therefore, this study was focu...

One of the biggest challenges in automotive industry focuses on weight reduction in sheet metal forming operations, in order to produce a high quality metal part with minimal cost production. Stamping is the most widely used sheet metal forming process; but its implementation introduces several difficulties such as springback and failure. A global and simple approach to circumvent these unwante...

It has been known for quite some time that collision-resistance of hash functions does not seem to give any actual security guarantees for unbounded hash-tree time-stamping, where the size of the hash-tree created by the timestamping service is not explicitly restricted. We focus on the possibility of showing that there exist no black-box reductions of unbounded time-stamping schemes to collisi...

The strength of panel sheets can be increased by 2–3 times after hot stamping, and for high quality stamped sheets, uniform cooling rate on the die face to quench is needed. However, it difficult water channels, commonly used stamping dies, dissipate heat evenly. In addition, dies are easily corroded contact with at temperature. Thus, this study considers air quenching process. airflow applied ...