Notice of RetractionNumerical simulation and experiment on precision forging of driven spiral bevel gear
In this paper, the numerical simulation of precision forging on driven spiral bevel gear was explored based on its physical simulation. The forming stage and the metal flow characteristic were analyzed; thereby the process of precision forging was designed. The material was 20CrMnTi and the equipment was friction press. The workblank of driven spiral bevel gear was manufactured successfully at 950°C~1000°C. It was indicated that the numerical simulation of was reliable and effective. Moreover, the results would be beneficial to industrialization producing driven spiral bevel gears using precision forging.
Recent development of process simulation for industrial applications
Abstract Manufacturing technologies have advanced over the past decades in many areas. These include process control, manufacturing tolerances, die design, CAD/CAM and process simulation. The constant pressures on manufacturers to reduce cost, minimize lead times and improve quality are ongoing. Automotive, aerospace, energy products, fastener, metals producers and other manufacturing industries are very competitive. Margins are tight even during strong periods of the business cycle. In this paper, the application of process simulation, as applied to the forging, cold heading and heat treatment is discussed. Several applications are presented, with an emphasis on industrial cases.
Application of finite element method in forging: An industry perspective
Abstract Over the last decade, the use of computers in the forging industry has increased at an incredible rate. Historical trends through the 1980's will be discussed leading up to the current “state of the art”. Prior to this decade, the industry was heavily experience-based. In the eighties, a number of factors including computer hardware costs, government funding, competitive pressures and ingenuity led to dramatic technical developments. The use of finite element methods for modelling the metal forming process, heat transfer and die stress analysis are becoming common among larger and more advanced metalworking firms. In this paper, the author intends to present a view of these events from an industry perspective, along with examples from the application of these tools.