The
continuous drive for weight reduction in the automotive industry has led to a
new generation of Advanced High Strength Steels (AHSS). While these new steels offer the advantage
of a stronger yet lighter steel, they also pose production challenges. Metalforming Magazine’s May cover story “Understanding the
New, Stronger Automotive Steels” is a very informative article about such
advantages and challenges of working with AHSS.
Tapping AHSS
The
tool life challenges metal stampers face when forming AHSS are the same for
tapping it. Tap material and cutting
speeds are two vital variables in determining tapping success. Hutchison
Tool recommends using taps made from harder tooling material to reduce tap wear
when working with these new steels. The expansion of cutting tool materials (HSCO
and PM materials) and coatings available will provide longer lasting tool life
when tapping AHSS.
For
optimal tapping the cutting speeds (SFM) used for Advanced High Strength Steels
should be in the 2/3 range of the tapping speeds for 1008-1010 material.
Hutchison Tool can assist you in determining the best tap and appropriate
cutting speed for all your tapping applications.
As
always, we welcome the opportunity to work with you on your tapping
applications. Please contact us at 800-332-3230
or you can e-mail at sales@hutchisontool.com.
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