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3
Description
The Almen Calibration Kit Instruction Manual is intended for individuals skilled in the use of the measuring
equipment described herein. The manual is based upon recommendations from ISO 10012-1. This procedure will
confirm Almen gage compliance with requirements of the following specifications.
TSP-3 Almen Gage
TSP-Jr Almen Gage
Digital Indicator
Analog Indicator
•
SAE J442
•
SAE AMS 2430
•
SAE AMS 2432
•
Boeing BAC 5730
•
MIL-S-13165C
•
SAE AMS-S-13165
•
MIL-S-13165C
•
SAE AMS-S-13165
Requirements
SAE J442
Test Strip, Holder and Gage for Shot Peening
and
SAE AMS 2432 Shot Peening, Computer Monitored
are the primary references used for the construction and calibration of the TSP-3 Almen gage. J442 is the primary
specification and AMS 2432 includes tighter tolerances for aerospace applications. SAE AMS-S-13165, successor to
MIL-S-13165C, is the primary reference for the Almen Gage Jr. Note: Both of these documents have been canceled
but may still be used if desired. The cancellation notice recommends users use AMS 2430 that defers to J442 for
Almen gage requirements.
Note:
This procedure must be performed in an environment with temperature in the range of 60˚F - 90˚F (16˚C -
32˚C) and a relative humidity of 30% - 90%.
Forms
The results of the calibration procedure can be documented in the Certification of Calibration forms found in this
manual. Both Metric and English versions are provided.
Equipment
The calibration kit includes:
•
9-hole template for the inspection of the position of the balls, posts and indicator tip
•
Five (5) step blocks (either Metric or English) to check the accuracy of the indicator
•
Commercial-grade .05 mm feeler gage to check the ball plane flatness
The 9-hole template also serves as the certified 2.0 mm feeler gage for ball height inspection. Any commercial-
grade feeler gage of .05 mm may be used. The feeler gage is for reference only and is not certified.
The step blocks may also be purchased individually. See “Replacement Parts” in this manual.
