Abstract

Laser additive manufacturing technologies have to be integrated into sophisticated process chains including the computer aided manufacturing (CAM) process planning to achieve best overall performance. But currently, additive manufacturing processes are developed to their limits without regards to the CAM process planning. Based on integrated CAM software, which handles specific laser process needs, successful implementations focus on individual geometries and offer solutions for the entire process of complex manufacturing and repairing tasks in laser deposition welding. Due to the change of process conditions and requirements, adequate process strategies need to be developed. Therefore, the capability for controlling these process parameters is considered within the CAM system. Hence, the shortcoming of laser deposition welding, the machining strategies can be fitted to the part's geometry.

Highlights

  • Laser deposition welding capacitates efficient production of small batches and high value parts1,2 due to the tool’s flexibility

  • Laser additive manufacturing technologies have to be integrated into sophisticated process chains including the computer aided manufacturing (CAM) process planning to achieve best overall performance

  • This paper focuses on a method to carry out laser deposition welding in context of repairing parts considering the CAM process planning in order to deliver an optimal result

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Summary

INTRODUCTION

Laser deposition welding capacitates efficient production of small batches and high value parts due to the tool’s flexibility. In industrial applications, it is currently regarded as an isolated step in the process chain of additive manufacturing aiming for the best process efficiency. Material defects are the main issue for limiting part’s lifetimes in almost every industry application They can be caused by either the manufacturing process or from wear due to usage. Laser deposition welding is an efficient method to repair worn-out areas It has been widely applied in industry for small batches and high value parts such as turbine-machinery and tool production to enhance the lifetime and the product quality

DESIGN OF PROCESS CHAINS IN LASER ADDITIVE MANUFACTURING
CAM SUPPORTED PROCESS PLANNING
MACHINING SYSTEMS FOR LASER DEPOSITION WELDING
Mesh-based laser tool path calculation
CAM planning method for adequate wire feeding during deposition
Specialized postprocessing for laser deposition welding
Machine simulation
CONCLUSIONS
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