Follow Along In-die Tapping Head Die Design Video

The expression that a picture is worth a thousand words is now being replaced by video is worth a thousand words.   Hutchison Tool is happy to introduce our latest instructional video for design characteristics of a die utilizing our follow along In-die tapping heads.  The video can be viewed under the video tab on our website(www.hutchisontool.com).  It can also be viewed on our Youtube channel via this link(http://youtu.be/EH143wec2T0)

Please contact us with any questions or comments you may have on the video as well as any design questions that you may have.

New In-die Tapping Calculator Estimating Tool

NEW In-die Tapping Calculator Estimating Tool

Calculate Press Stroke and Strokes per Minute (SPM) using our new In-die Tapping Calculator.  It’s as simple as plugging in a few basic parameters (thickness, tap pitch, press stroke, etc.) and scrolling to your answers. The In-die Tapping Calculator can be found under In-Die Tapping Resources on our newly updated website, www.hutchisontool.com.  

Click on Application Worksheet on the In-Die Tapping Resources page to download the excel file.  Choose between 2 spreadsheets: one for applications with strip-lift under .125” and the second for those over .125”.  Enter your information and get your answers instantly. We will gladly guide you through the worksheet if further assistance or a unique application is needed. 

2D & 3D In-Die Tapping Head CAD Files Available at HutchisonTool.com

Finish your tapping die design with a few clicks of the mouse.  2D & 3D CAD drawings for all Hutchison In-Die Tapping Head Models are available for download at www.hutchisontool.com.  Simply click on the In-Die Tapping Resources tab for CAD File links.

Once your design is complete our design engineers will gladly review the tapping station via a GoTo Meeting to ensure the in-die tapping implementation of your project is a smooth and trouble free experience.

Be Aware of Burrs with Roll Tapping

The nature of rollform form tapping inherently will cause a bur.  This is due to the fact the rollform tapping forms and displaces material v. cutting out material with cut tapping.  While rollform tapping is a stronger thread than a cut thread, the burs that are produced need to be addressed.  Generally this is done but countersinking the hole so that the burs will not protrude past the top and bottom face of the material.

Another issue that comes up when rollform tapping with In-die tapping is making a clearance hole in the die for the burs from the rollform tapping operation.  If there is not a clearance hole the likely result will be the bur being pushed back into the bottom of the tapped hole.  This will result in having the go gage work to the bottom of the tapped hole and stopping at the last thread. By providing clearance in the die this issue is easily resolved.  

Hutchison Tool introduces HTS Models 3000, 3100, 6000, 6100

Hutchison Tool introduces HTS Models 3000, 3100, 6000, 6100

We are pleased to announce the latest In-die tapping heads with the introduction of the HTS Models 3000, 3100, 6000 and 6100.    These new units encompass several new features while maintaining a large tapping capacity (#2-56 to ½-13 or M2 to M12) and a quick change tap assembly that allows taps to be changed in the press in under a minute.  The following are some of the new features:

• Multiple mounting options for improved press accessibility
• Enhanced Lead Screw/Tap Collet Design
• Adjustable Coolant Ring
• Unique Bill of Material Parts List for each unit(including multi-spindle units)
• One year/One Million Stroke Limited Warranty

To learn more please visit our website at www.hutchisontool.com.  The website has a library of information including CAD files, tapped hole size guide, pricing and a tapping calculator to help determine press stroke requirements and production speeds

Be Aware of Burs with Roll Tapping

The nature of rollform form tapping inherently will cause a bur.  This is due to the fact the rollform tapping forms and displaces material v. cutting out material with cut tapping.  While rollform tapping is a stronger thread than a cut thread, the burs that are produced need to be addressed.  Generally this is done but countersinking the hole so that the burs will not protrude past the top and bottom face of the material.

Another issue that comes up when rollform tapping with In-die tapping is making a clearance hole in the die for the burs from the rollform tapping operation.  If there is not a clearance hole the likely result will be the bur being pushed back into the bottom of the tapped hole.  This will result in having the go gage work to the bottom of the tapped hole and stopping at the last thread. By providing clearance in the die this issue is easily resolved. 

Having a Problem with Slivers from a Rollform Tap Operation?

Having a Problem with Slivers from a Rollform Tap Operation?

One of the biggest reasons companies choose rollform tapping is to eliminate chips during the tapping operation.  Some of the applications for rollform tapping include use in In-die tapping applications of stamped parts to keep chips out of the die or tapping of blind holes in machined parts which eliminates chips packing at the bottom of the hole.

Occasionally we will hear from customers about the formation of slivers during the rollform tapping operation.  Although these slivers are not the volume of chips resulting from a cutting tap application, these slivers can cause a problem when you are expecting a chipless tapping operation.  Generally, the cause of these slivers is the result of a hole size that is too tight.  Keep in mind that a rollform tapped hole size should be larger than a cutting tap and in addition trying to achieve greater than a 75% thread with a rollform tap can cause this sliver issue.  Please feel free to send us an e-mail to sales@hutchisontool.com if you would like us to send you a rollform hole size chart for metric and imperial size threads.