Orbitform offers a new method of welding plastic parts with molded posts and tabs: ThernuForm, a method of thermal-pneumatic heat staking.
A controlled flow of hot air is blown across a stud or boss to be formed. Then, a cold tool upsets the boss under low pressure to form and set the desired head shape. The boss is remolded, and the resulting joint is tight and rattle free, according to the company in Jackson, Mich.
Hot-air guns are modular, and easy to change to handle different parts, the firm said.
Orbitform said most types of thermoplastics can be formed using ThernuForm, including ABS, nylon, polypropylene, polycarbonate and filled materials.
Tel. (800) 816-9661, fax (517) 787-6609, e-mail [email protected] form.com.