HFS-03 Lock Standard - saf-holland

HFS-03 – SAF-HOLLAND Lock Standard Page 10 of 35Rev. K (6/11)4.2.1 Macro-etch grain flow(Procedure applies only to XE-09416, XE-07296 and XE-10487.)4.2.1.1 Cut the lock forging to produce a 1/4” - 1/2” thick section exposingthe center of the lock. (Appendix C)4.2.1.2 The section will be ground smooth and etched in 50% HCl, 50% H 2 0heated to 160-180°F to show the grain flow of the material. Grainflow shall be as shown in Appendix C. Radii areas will be examinedfor any defects.4.2.1.3 Results shall be evaluated, photographed, and documented on theLock Test Report Report Form, Appendix D.4.2.2 Magnetic Particle Inspection4.2.2.1 The sections of the lock remaining from the grain flow sectioningshall be inspected by magnetic particle method for indications.4.2.2.2 The magnetic particle machine shall be set up in accordance withSection 3.3.1.5 of this procedure.4.2.2.3 The forged surface areas shall be evaluated in accordance withSection 3.3.1.1 through 3.3.1.4. Results shall be recorded on theLock Test Report Form (Appendix D).4.3 A copy of the Lock Test Report shall be sent to Receiving noting if the parts areacceptable or unacceptable. Appropriate action shall be taken in accordance withstandard quality assurance procedures.4.4 Cause for rejection of a heat of locks at Receiving shall include:4.4.1 Unacceptable magnetic particle results4.4.2 Improper or irregular grain flow4.4.3 Visual defects in the grain flow indicated in Appendix C4.5 Action in the event of rejection of locks:4.5.1 The entire batch (heat) of locks shall be placed on “Hold”.4.5.2 All results shall be reviewed by SAF-HOLLAND Engineering for disposition.4.6 Lot control of the forgings and finished parts shall be maintained by part number andheat code at all phases of production and inventory.5.0 Dimensional Control