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Toys and engineering materials
Toys and engineering materials

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2.3.1 The manufacture of tennis racquets

In this activity you are asked questions on the following video, which shows one method of manufacturing modern composite tennis racquets.

Activity 3 Tennis racquet

Timing: Allow about 10 minutes

Consider the following questions as you watch the video and note down your answers.

  • a.How many layers of CFRP are added to the frame at the start?
  • b.How and why do they keep the core hollow during the heating process?
  • c.What material is added to the inside of the frame, and why?
Download this video clip.Video player: t271_2018j_openlearn_vwr046-640x480.mp4
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  • a.Between 7 and 12 layers of CFRP are added to manufacture the frame.
  • b.Pressurised air is pumped into the frame, to ensure space is available for it to be filled with a suitable material.
  • c.Foam is pumped into the frame to add strength and stability to the finished product.