Toyota jidosha kabushiki kaisha (20240316624). MANUFACTURING METHOD FOR FASTENING STRUCTURE simplified abstract

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MANUFACTURING METHOD FOR FASTENING STRUCTURE

Organization Name

toyota jidosha kabushiki kaisha

Inventor(s)

Shinya Nagashima of Kariya-shi (JP)

Toshiyuki Dobashi of Nagoya-shi (JP)

Nobuyuki Shinohara of Tajimi-shi (JP)

Mayumi Nakanishi of Okazaki-shi (JP)

Reona Takagishi of Tajimi-shi (JP)

MANUFACTURING METHOD FOR FASTENING STRUCTURE - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240316624 titled 'MANUFACTURING METHOD FOR FASTENING STRUCTURE

Simplified Explanation: The patent application describes a process where a self-piercing rivet is driven into a first member that has been die-cast, while the heat from the casting process is still present. This results in the rivet being driven into the first member at a higher ductility state, reducing the likelihood of cracking during the driving step.

  • The first member is cast using die casting.
  • A self-piercing rivet is driven into the first member from the second member side.
  • The rivet is driven into the first member while it is still hot from the casting process.
  • This results in the first member being less likely to crack during the driving step.
  • The ductility of the first member is higher than at normal temperature during the driving step.

Potential Applications: This technology could be used in automotive manufacturing, construction, and other industries where joining metal parts is necessary.

Problems Solved: This technology addresses the issue of cracking in metal parts during the driving of self-piercing rivets, especially when the parts are still hot from a casting process.

Benefits: The benefits of this technology include improved structural integrity of joined metal parts, reduced risk of cracking, and potentially faster production processes.

Commercial Applications: This technology could be applied in the automotive industry for joining metal components in vehicle assembly lines, as well as in construction for connecting structural elements.

Prior Art: Readers can explore prior art related to self-piercing riveting processes, die casting techniques, and methods for joining metal parts in manufacturing.

Frequently Updated Research: Stay informed about advancements in self-piercing riveting technology, die casting innovations, and materials science research related to metal joining processes.

Questions about Metal Joining Technology: 1. How does the temperature of metal parts affect the effectiveness of self-piercing riveting? 2. What are the key differences between die casting and other metal forming processes in terms of joining techniques?


Original Abstract Submitted

in a casting step, a first member is cast by die casting. in the driving step after the casting step, a self-piercing rivet is driven into, from a second member side, an overlapping part in which the second member overlaps the first member, while heat from casting remains in the first member. as a result, the self-piercing rivet is driven into the first member in a state that the ductility is higher than that at the normal temperature. therefore, the first member is less likely to crack during the driving step.

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