Abstract
During LATP (laser automated tape placement), the compaction roller contacts the prepreg and affects the pressure distribution directly. Moreover, the design parameters of the roller are optimized with the aim of improving pressure uniformity. This paper examines the impact of the contact line and surface that depends on the compaction force, the design of the roller, the angle of inclination and the angle of inclination of the strip. These factors significantly affect the expansion of the tape, and it is important to determine it to avoid side effects in the production of composites (formation of gaps or overlaps). Their presence increases the percentage of pores of the final material and thus reduces the mechanical properties. The results show that the pressure uniformity can be improved significantly by design optimization of the roller, which indicates that higher bond quality between layers is achieved. The lower the speed and higher the compact force in this technology give better intimate contact with a lower percentage of voids and good mechanical characteristics.
Highlights
Thermoplastic tape placement is a special case of an out of autoclave process; it has a high potential for the aerospace industry due to its high degree of automation
Within the laser thermoplastic tape placement process, tapes are melted by a heat source, such as a laser beam, and bonded to laminates by compaction force induced by a consolidation roller
ILSS and Void In order to see how the compact force acts on the mechanical characteristics while paying attention to the width of the strip depending on the angle of laying in order to avoid gaps and overlap, composite plates were produced with two compaction forces (200 and 1000) and two different passing speeds (3 and 6 m/min) for both materials
Summary
Thermoplastic tape placement is a special case of an out of autoclave process; it has a high potential for the aerospace industry due to its high degree of automation. This paper examines the impact of the contact line and surface that depends on the compaction force, the design of the roller, the angle of inclination and the angle of inclination of the strip.
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