Instructions for Use of 2-Sided Template

Tensilkut two sided master templates are preferred for cutting most specimen configurations, because both sides of the sample can be cut without removing the partially completed specimen from the template.

Loosen the two socket screws on the top of the template saddles with the allen wrench provided.  The clamping bars will be free to move.  Insert your prepared specimen blank between the thin, moveable bar and the lower, fixed bar until the sample end butts up against the stop pin at one end of the template.

Tighten the two socket screws against the clamping bar with firm pressure, until the sample is secure, using the supplied allen wrench only if necessary.  Due to the unique low cutting forces involved with the Tensilkut, only moderate pressure is required to hold a sample during the machining operations.  The template is basically a holding fixture, and not a vise – excessive pressure in the socket screws could result in deformation of the template assembly.

The contour of the test specimen is controlled by the contour of the top bar of the template, which is riding along the guide sleeve of the control unit.  This guide sleeve determines the final width of the test specimen, while the master template controls the configuration of the gauge area.

Proper grip for use of Tensilkut Template

Proper grip for use of Tensilkut Template

The guide sleeve is adjusted by the micrometer dial measured in .001” divisions, with a complete revolution of the dial equal to .050”.  Turn the micrometer dial to its full out position (counterclockwise, as in unscrewing a bolt), until the stop is reached, and the indicator points to 50 on the dial.  This is the finishing position for the guide sleeve (in closest proximity to the cutting bit when a sample is completely machined).  To machine a ¾” wide sample to .500” gauge width, a total of .250” must be taken off (.125” per side).  Starting with the dial on 50 and the guide sleeve closest to the cutter, turn the dial so that the slide moves outward .125”, or a distance equal to the total amount which must be taken off that side.  With the template against the guide sleeve, the sample will just contact the cutter.  Turn the motor on with the switch located on the lower section of the motor.  Bring the left end of the contoured section of the master template containing the sample into contact with the sleeve, and with moderate hand pressure and a continuous motion, move the template across the table top in contact with the sleeve until the right end of the contoured section is reached.  Rotate the template 180 degrees, so the uncut side is closest to the cutter, and repeat this motion.  To begin the first actual contour cut of the sample, the sleeve must be moved inward an amount equal to the depth of the first machining cut.  Again, bring the left end of the contoured section of the master template in contact with the sleeve, and move the template across the table top as described above, rotate to cut the other side, and repeat until the machining of the sample is complete.  It is advisable to make the last pass no more than .001” to .003” deep, to achieve the optimum surface finish.  Please note that the sample’s finished edge will appear slightly oversized in relation to the contoured edges of the template.  The sample, when removed from the template, will have contours in accordance with the specification required.

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