Weight-reduction techniques are of particularly necessity for fast-moving machines.

*In the aerospace industry, high-strength and high-reliability materials are extremely important, and there has been a shift towards using CFRP composite materials as a replacement for lightweight metals such as Duralumin.
*The same materials used for airplane bodies are adopted for F1 racing car bodies.
*The arm parts of electronic packing machines and conveyance robots are examples of their use in high-speed drive units.

Weight-reduction techniques by material substitution are applied to the above case examples.

(1)Weight reduction by material substitution

To make a product lightweight by material substitution, the following technical requirements must be satisfied at the same time:

(2)Material design to guarantee strength after material substitution

• For material substitution from a metal to a resin, adopt a composite structure in order to reduce weight while achieving the guaranteed strength.
• The "CFRP" in CFRP composite materials is an abbreviation of "Carbon Fiber Reinforced Plastics."
• Carbonize the fiber and adopt it to the structural member inside the resin. The fiber continuum and adhesive strength of the resin will make the material lightweight and shatter-proof.