MIL-HDBK-1890

Abstract

This handbook gives guidance for nondestructive inspection of welded joints. This handbook is for guidance only. This handbook cannot be cited as a requirement. If it is, the contractor does not have to comply. <br>This handbook covers the inspection of the five basic types of welded joints used in the manufacture of gas turbine tank engine components. The types of joints referenced are: <br>a. Butt <br>b. Comer <br>c. Edge <br>d. Lap <br>e. Tee <br>Processes categorized within groups that are incorporated in this handbook are as follows: <a><img alt="TABLE" /></a> <br>Weld joints should be classified as follows: <br>Class 1 - Joints subject to high stress or fatigue loading. <br>Class 2 - Joints subject to intermediate stresses or fatigue loading. <br>Class 3 - Joints subject to intermediate stresses. <br>Class 4 - Joints subject to low stresses. <b><u>Intended Use:</u></b> This handbook is intended to outline the methods for non-destructive inspection to insure that joints welded in accordance with the processes of this handbook will meet the inspection guidelines of section <a>4.2</a>. <br>