The laser polarization is introduced into laser micro bending, and an experimental system is established. Laser bending for highprecision curvature adjustment of microcantilevers x. Thus, the laser polarization can be utilized to control the bending angle by changing the laser incident angle during laser bending. Laser bending for highprecision curvature adjustment of. Micro bending another innovation from kmlt brings the universal bending of materials with highest accuracy requirements for the final product. The bending is asymmetric the restraint is not same at edges and the middle of the sheet the previously heated region cools and contract me 677. Short pulse laser micro bending is intended as a nonthermal forming process utilizing the shock wave induced by laser irradiation to bend of micro scale components. Integrated laser tube cutting and bending machines process. Experimental analysis of sheet metal microbending using a. Laser micro bending process based on the characteristic of the laser. Richard zhanga and xianfan xu school of mechanical engineering. Investigation of micro bending of sheet metal laminates by laser driven soft punch in warm conditions. The laser micro bending mechanisms of square bar and plate are different due to the size difference. It is developed to accurately bend, shape, precision align, or repair micro components with bending angles less than 10.
Laser micro bending process based on the characteristic of the laser polarization is realized. Negative bending angle away from laser beam can be achieved with the highenergy pulsed laser, despite the conventional positive laser bending mechanism. Ramesh singh causing a bend at that location while the beam is heating at some other location the amount of bending per pass is not very great. Pdf finite element analysis of micro scale laser bending. It is developed to accurately bend, shape, precision align, or repair micro. The finite element analytical model including establishment of. This option is especially suited to miniature housings, shields, contact sheets, springs, etc. Pdf laser micro bending process of ti6al4v square bar. Laser shock bending is a sheet metal micro forming process using shock waves induced by a nanosecondpulsed laser. Pdf microbending based optical bandpass filter and its. This paper aims at a systematic understanding of the thermomechanical reaction of square bar during laser micro bending. Pdf laser shock bending is a sheet metal microforming process using shock waves induced by a nanosecondpulsed laser. Blm group sets itself up as a global partner for the whole tube processing, from laser cutting to cold saw, bending, endforming, measurement, with a worldwide presence.