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RS-200 Residual Stress Milling Guide

The most widely used practical technique for measuring residual stresses is the hole-drilling strain gage method described in ASTM Standard E837. With this method, a specially configured electrical resistance strain gage rosette is bonded to the surface of the test object, and a small shallow hole is drilled through the center of the rosette.  The local changes in strain due to introduction of the hole are measured, and the relaxed residual stresses are computed from these measurements. The practicality and accuracy of this method is directly related to the precision with which the hole is drilled through the center of the strain gage rosette. The Micro-Measurements RS-200 milling guide provides a practical means to accomplish this task.

 

Watch a short RS-200 Video here.

Equipment to Support Residual Stress Testing

  • Special Residual Stress Rosettes in a variety of sizes
  • Gage Application Kits that contain the adhesive and installation supplies that are necessary for a successful strain gage installation
  • H-Drill Software for data reduction that is written by an industry leading expert in the field of residual stress analysis
  • The Model P3 Strain Indicator and Recorder for capturing the signal from the rosettes.

 

You will find that Micro-Measurements offers a complete solution for the measurement of residual stress testing using the hole-drilling technique and see the details below. Please contact our Applications Engineering Department if you would like to find out more about residual stress testing or other products offered by Micro-Measurements. 

 

RS-200 Milling Guide Equipment

PART NUMBER

DESCRIPTION

 

 

MMP920-000265

RS-200 MILLING GUIDE- COMPLETE UNIT

MMF336166

RS-200-CK2 GRIP ADHESIVE (5 PACK)

   

REPLACEMENT PARTS

 

 

 

MMF336166

RS-200-CK2 GRIP ADHESIVE

MMP920-000193

RS-200-FP REPLACEMENT FOOT PADS QTY 3 WITH TEMPLATE

MMP100-010569

RS-200 END MILL .062

MMP100-010573

RS-200 END MILL .125

MMP20X100033

RS-200-B1 REPLACEMENT BULB FOR LIGHTSOURCE

MMP27X300006

ATC-200-062 CARBIDE-TIPPED CUTTERS (10/PKG)

MMP27X300007

ATC-200-031 CARBIDE-TIPPED CUTTERS (10/PKG)

 

 

Residual Stress Strain Gage Rosettes

GAGE PATTERN AND DESIGNATION
Insert Desired S-T-C No. in
Spaces Marked XX.

RESISTANCE

IN

OHMS

 

DIMENSIONS

GAGE LENGTH

GRID CTR’LINE DIA.

TYPICAL HOLE DIA.

MATRIX

Min.

Max.

Length

Width


 


 


 


 


 


 


 


 


 


 

CEA-XX-062UL-120

Full screen preview

120 ± 0.4%

 

0.062

0.202

0.06

0.08

0.50

0.62

1.57

5.13

1.5

2.0

12.7

15.7

Fully encapsulated with large copper-coated soldering tabs. Same pattern geometry as 062RE pattern.

 

CEA-XX-062UM-120

Full screen preview

120 ± 0.4%

 

0.062

0.202

0.06

0.08

0.38

0.48

1.57

5.13

1.5

2.0

9.6

12.2

Fully encapsulated with large copper-coated soldering tabs and special trim alignment marks. Trim line spaced 0.068 in (1.73 mm) from hole center. Limitations may exist in data reduction equations.

         

EA-XX-062RE-120

EA-XX-062RE-120/SE

Full screen preview

120 ± 0.2%

120 ± 0.4%

 

0.062

0.202

0.06

0.08

0.42

0.42

1.57

5.13

1.5

2.0

10.7

10.7

Most widely used RE pattern for general-purpose residual stress measurement applications.

         

EA-XX-031RE-120

EA-XX-031RE-120/SE

Full screen preview

120 ± 0.2%

120 ± 0.4%

 

0.031

0.101

0.03

0.04

0.29

0.29

0.79

2.56

0.8

1.0

7.4

7.4

Due to small pattern size, measurement error can be magnified by slight mislocation of drill hole. Pattern not recommended for general-purpose applications.

         

EA-XX-125RE-120

EA-XX-125RE-120/SE

Full screen preview

120 ± 0.2%

120 ± 0.4%

 

0.125

0.404

0.12

0.16

0.78

0.78

3.18

10.26

3.0

4.1

19.8

19.8

Larger version of the 062RE pattern.

 

 

 

 

 

 

 

 

 

 

 

Related Products


 

GAK-2-200 Gage Installation Kit

P3 Strain Indicator and Recorder

H DRILL SOFTWARE

Full screen preview

Full screen preview

Full screen preview

 

Reference Documentation and Video:

TN-503 Technical Note

B-127 Instruction Bulletin for Strain Gage Installations with M-Bond 200 

Introduction to the RS-200

 


 

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