SEWS-E would like to join all members throughout the Sumitomo Electric Group in congratulating our colleague Mr. Tomoya Tamura who represented Japan in the Rio de Janeiro Olympic Games Men’s 4 x 400 meter relay on August 20th 2016. Mr. Tamura who is a member of the Sumitomo Electric Industries athletics club has an excellent record in men’s 400 meter races including second place in the 2014 intercollegiate athletic game in Japan and third place in the 99th Japan National Championships. He also competed in the 2015 World Championships in Athletics. The Japanese 4×400 relay team finished in 13th position.
To support our life and society, the Sumitomo Electric Group provides products and technologies in five segments.
- Industrial Materials
- Environment and Energy
Read the latest Sumitomo Electric Group company profile here.
In January 2016, Sumitomo Electric Group will be exhibiting at the International Consumer Electronics Show (CES) for the second time. Please be introduced to Sumitomo Electric’s booth for CES 2016.
Sumitomo Wiring Systems has issued Environmental Reports every year since 2001 to help you understand our group’s environmental efforts. In the search for a better relationship with our stakeholders, we have enhanced the reports since 2008 in the form of a CSR Report. The 2015 CSR report is now available online.
As the demand for the reduction of CO2 emissions from automobiles is ever increasing, lightweight wiring harnesses have been in high demand. Effective weight reduction can be expected by replacing conventional copper electric wires with aluminum electric wires. However, aluminum wires have several drawbacks such as low electrical conductivity, low tensile strength, and poor workability, as well as a strong insulating oxide film on the surface and galvanic corrosion. To solve these problems, we have developed an aluminum alloy conductor with improved electrical conductivity, tensile strength, and workability. We also developed a unique serration terminal structure that maintains low contact resistance and sufficient wire retention force even under a thick oxide layer. We also established an anti-corrosion technology that prevents galvanic corrosion by molding the crimped joint of the terminal.
This paper from Sumitomo Electric explains respective solutions in detail. More Information.
Keywords: aluminum wire, crimping, wiring harness, automobile, anti-corrosion.
The SEI TECHNICAL REVIEW is a journal of technical papers explaining the Sumitomo Electric Group’s technologies. Technical papers are available in PDF format from this webpage.