Site: Kawasaki Heavy Industries
Aerospace Engineering Dept.
1 Kawasaki-chome, Kakamigahara-shi
Gifu Prefecture 504, Japan
Date Visited: December 8, 1992
Report Author: B. Kramer
Mr. Kohmei Kawaji
Mr. Kohki Isozaki
Mr. Motoaki Yanase
Mr. Minoru Noda
Mr. Hirotoshi Nakayama
Mr. Hisao Sayanagi
Kawasaki started assembling aircraft in 1923. The company separated from the Kawasaki Dockyard as an independent company in 1937.
The Aerospace Group consists of seven divisions (see Figure KHI.1). The principal composite products manufactured are shown in Figure 1.2 (Chapter 1). KHI's major equipment for composites manufacturing is indicated in Table KHI.1.
KHI has developed a low cost method for manufacturing an ê-type stringer, using a teflon rod insert and silicone rubber tooling.
There is new technology for producing super-composite bolts (see Figure KHI.2). The unique feature is that the fibers bend into the thread space, vastly increasing shear strength. They have a 4.8:1 specific strength advantage versus high strength steel.
KHI has developed technology for producing sine wave stiffeners using a low CTE, cast steel tool on the outside and silicone rubber on the inside.
Our KHI hosts preferred not to rate their company relative to others due to a lack of information. They felt that composites raw material costs should be reduced by about 50%, and indicated that they tried to get structures business from the U.S. and Europe, but that their quotes were too high.
When the JTEC team observed that KHI's parts were highly integrated by co-cure; our hosts agreed, but added that they needed excellent craftsmanship to get good yield.
The team noted three items of particular interest:
The emphasis on new process development was on tough resins and high temperature resins.
Figure KHI.1. Organization Chart (Courtesy of Kawasaki Heavy Industries, Ltd.)
KHI Facilities for Composite Products
Figure KHI.2. Super Composite Bolt -- expected for future use in the sea, ground, air, space and so on.
KHI expects great activity in all fields.
Kawasaki Heavy Industries Ltd., Aerospace Group. 1991. "Advanced Material Products in the Aerospace Field" (brochure). Japan.
------. 1992. "KHI's Capability for Composite Structure" (viewgraph).
Kawasaki Heavy Industries, Ltd. 1992. "Gifu Works" Cat. No. 5V0071 (brochure). Japan.