Metal stamping die design is a complex, experiencebased and time-consuming task. Various artificial intelligence (AI) techniques are being used by worldwide researchers for stamping die design to reduce complexity, dependence on human expertise and time taken in design process as well as to improve design efficiency. In this paper a comprehensive review of applications of AI techniques in manuf...

Micro-stamping process is one of the most cost-effective methods to manufacture metallic bipolar plates (BPPs). This research investigates the forming of titanium thin sheet as a potential candidate for BPPs in proton exchange membrane fuel cell (PEMFC). In this regard, the process was first simulated using finite element (FE) code Abaqus. Afterward, experimental tests were implemented and the ...

Efficient secure time-stamping schemes employ a 2-level approach in which the time-stamping service operates in rounds. We say that a time-stamping service is accountable if if it makes the TSA and other authorities accountable for their actions by enabling a principal to detect and later prove to a judge any frauds, including attempts to reorder time-stamps from the same round. We investigate ...

This study deals with the cumulative pitch variations in DIN male contacts. A connector provides a separable interface between two subsystems of an electronic system. DIN is a series of connector which stands for Deutsch Institut fur Normung. They are used for applications like switching, transmission, radio base stations, control units and machines. Connector manufacturing involves stamping, m...

The Internet and World Wide Web (WWW) are evolving as an important communication technology. This paper aims to develop methodology for enabling better concurrent stamping part and die development, in the evolving Web technology. The characteristics of concurrent stamping part and die design are presented, and the necessity and feasibility of building Web-based concurrent stamping part and die ...

4 Implementation 9 4.1 Time-stamping Algorithm . . . . . . . . . . . . . . . . . . . . . . 9 4.2 Correctness of the Implementation . . . . . . . . . . . . . . . . . 11 4.2.1 Preliminary Results . . . . . . . . . . . . . . . . . . . . . 11 4.2.2 Proofs of Safety Conditions . . . . . . . . . . . . . . . . . 12 4.3 Progress Condition . . . . . . . . . . . . . . . . . . . . . . . . . . 14 4.3.1 Pro...

This paper describes a new electronic official seal stamping based on Group Signature, USB Key. Bill/Contract in Ecommerce must be seal stamped to gain tamper proof and nonrepudiation. The seal stamping control is designed based on the certificate-based public key. This technique is more efficient for generating and verifying individual/group signatures in terms of computational efforts and com...