Makoto Murata

TL;DR: In this paper, the results obtained from the hemming experiments that were conducted at the Engineering Research Center for Net Shape Manufacturing (ERC/NSM) by using Aluminum Alloy 1050 are presented.

TL;DR: In this article, the influence of changing of the magnetic field and skin depth on the forming tube, the magnetic pressure is deviated, and the effects of changing the working conditions such as the capacity of capacitor bank, the length of solenoidal coil were analyzed and experimentally investigated for the electromagnetic forming process and the forming efficiency.

TL;DR: In this article, the effect of hardening exponent on tube bending was examined by examining the bending radius, strain distribution, springback and flatness of tube by FEM (finite element method).

TL;DR: In this paper, an elasto-plastic 3D finite element simulation has been conducted to analyze the deformation behavior of tube and the theoretical values of strains have been obtained and compared with the simulated results.

TL;DR: In this paper, a new punching method for the thin sheet metal using ultrahigh pressure gas without punching was proposed, and the results showed that the punched holes have a large shear droop and small fracture surface with good degree of accuracy in size.