Better Engineering Mfg., Inc.
Case Study 1010






Manufacturing

Customer
Jet Engine Manufacturing

Application
“HPT” Vanes

Background
“HPT” vanes are small (6” cubed), intricate parts which join together to form a hollow ring called an “air nozzle” assembly...a major component in a jet engine.

In the manufacturing process, the part’s cavities are pumped full of wax and then tiny holes are drilled with a laser. The wax stops the laser from mistakenly hitting the other side of the cavities.

Problem
The wax and debris from laser drilling has to be removed. This is no easy task considering the pin holes and hidden cavities. They were using a vapor degreaser.

Solution
Use high impingement, “zero degree” spray nozzles to dislodge the wax and anything else clogging a laser drilled hole. Instead of using pipe, use manifold boxes where the face has two (2) 30° bends. These bends point the three (3) rows of nozzles in different directions.

System
A stainless steel F-4000-P with an ARC-22 rinse tank and hot, compressed air drying. For drying, the overhead manifold has twenty (20) air amplifying nozzles.

5/14/96

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