Puget S o u n d S e c t i o n / A S NE H e a r s P r e s e n t a t i o n O n E x p l o s i v e B o n d i ng

Where does the Navy, petroleum, or chemical industry go to find solutions to intermetallic bonding and reaction problems or unique powder metallurgy techniques? From the presentation made at a recent meeting of the Puget Sound Section of ASNE, the answer became evident that it's to A1 Hare and his associates at Northwest Technical Industries of Sequim, Wash. Mr. Hare gave a presentation on Explosive Bonding before section members.

Mr. Hare started his program by challenging the group to think of what you could do with a process utilizing 3000°C and 10 million psi. Primary uses emerged in metallic bonding, forming, powder compaction and alloy formation, hole drilling, rock fracturing and shearing. Specific examples of the explosive bonding process were illustrated and discussed. Of partic- ular interest to the group was Mr. Hare's work in the marine environment; bi- and trimetallic joints utilized in deckhouse to hull interfaces, steel aircraft tiedowns in aluminum flight decks, seamless aluminum/steel tubing made from flat plate, and 90/10 CuNi bonded to steel for protection from marine corrosion. An exciting, recent discovery made by Mr. Hare's company was the use of piano wire bonded to aluminum in the application of aircraft engine shielding and tank armor.

Mr. Hare concluded his program by showing the group the strongest metal alloy in the world, a powder compaction alloy of tungsten- hafnium-carbide. A question and answer period followed where the actual process of explosive bonding was described and production problems discussed. Further comments at the meeting were presented by Section chairman Stan Stumbo.

A & B Industries aluminum R&R Marine company industry engine drilling members chairman environment industries solutions meeting aircraft petroleum