DESIGN AND MANUFACTURING OF AN OPTIMIZED MOULD INSERT BY DMLS TECHNOLOGY

Utilization of the DMLS technology in manufacturing of tools and moulds designed for injection and casting ranks among significant possibilities of use. The main advantage in case of DMLS in comparison to conventional methods rests in the fact that manufacturing time does not depend on geometrical complexity of shaping part of the mould. In case of low volume or prototype moulds it is advantageous to use a concept of combination of shaping intermediate pieces inserted in universal frames and as material the DM 20 alloy on bronze basis the service life of which in case of such application is several thousand pieces.

Virtual Model of Gear Shaping—Part II: Elastic Deformations and Virtual Gear Metrology

Elastic deflection of cutting tools relative to the workpiece is one of the major factors contributing to dimensional part inaccuracies in machining. This paper examines the effect of tool deflection in gear shaping and its effect on the gear's profile form error, which can cause transmission error and noise during gear operation. To simulate elastic tool deflection in gear shaping, the tool's static stiffness is estimated from impact hammer testing. Then, based on simulated cutter-workpiece engagement and predicted cutting forces, the elastic deflection of the tool is calculated at each time-step. To examine the effect of tool deflection on the profile error of the gear, a virtual gear measurement module is developed and used to predict the involute profile deviations in the virtually machined part. Simulated and measured profile deviations were compared for a one-pass external spur gear process and a two-pass external spur gear process. The simulated profile errors correlate very well with the measured profiles on the left flanks of the workpiece teeth, which are cut by the leading edges of the cutter teeth. However, additional research is needed to improve the prediction of the right flanks, which are cut by the trailing edges of the cutter teeth.

Seeking delocalization

The continuing development of the Internet and broader technologization have made the presence of game fans and the diverse fan community highly visible, shaping part of contemporary global game culture. The influences of such user empowerment have been debated, notably along the lines of the emergence of participatory culture (Jenkins 2006). Increased fan participation in translation facilitated by technological environments is highlighting the need to pay attention to the role played by such highly engaged users in the localization industry. Yet, to date the topic has not been explored fully in game localization research. To fill this gap, this article considers the significance for game localization of the dynamically evolving status and influence of international game fan communities. Taking the case of a controversy that erupted during 2015 and 2016 over localization of a Japanese tactical RPG (Role Playing Game) title, the article investigates how user empowerment is impacting on game localization. This article demonstrates the importance – for game publishers and developers alike – of recognizing the increasingly significant presence of global game fan communities. In particular, game publishers and developers must be prepared to have clear and consistent localization policies and strategies in place in order to face the scrutiny of increasingly knowledgeable and empowered fan communities.