Somma Form Tool Design Manual

ISMS - Your source for Somma Tool and much more.

ISMS� is an Authorized Distributor for Somma Tool Broach Tools including Rotary Broaches & Rotary Broach Holders, Cut-Off Blades, Shave Tools, Tool Inserts, Cutting Tools, Tool Holders, Work Holders, and Accessories.

Tooling, Workholding, Tool Holders & Accessories for Automatic Screw Machines & CNC Turning & Milling; Davenport� Parts, Attachments, Machines & Services

www.sommatool.com

SOMMA TOOL � "Your Single Source for Screw Machine Tooling"

Somma Tool Company is the only manufacturer in the United States to offer a full line of tooling for screw machines. Somma offers preset and quick change tooling in addition to cutting tools, tool holders, work holders and accessories for screw machines, turret lathes and CNC lathes.

Download Somma Tool Catalog (PDF file; Approx. 7 MB)

FEATURED BELOW ARE A FEW OF THE FINE SOMMA TOOL COMPANY PRODUCTS AVAILABLE FROM ISMS:

Rotary Broaching Holders and Broaches

Cut-Off Blades

Quick-Change Tool Insert

Rotary Broaching Holders and Broaches

Typical Somma broach tools and holders

Since, as the name implies, broaching can be performed on a part that is rotating, turned parts requiring a broached hole can very often be completed in the original setup on the screw machine or CNC turning machine. This eliminates the need for secondary operations and improves part uniformity.

The rotary broaching principle can also be applied to broaching on a CNC machining center or vertical mill. The only difference being that the broach holder is rotated in the machine spindle and the part is stationary instead of the reverse condition on a turning machine.

As manufacturers of rotary broaching tools, Somma soon realized that in order to produce parts successfully there are a few basic rules that must be followed. These rules are based on understanding how and why rotary broaching works.

INSERTS CAN BE RESHARPENED 20 TO 30 TIMES .
Somma Resharpenable Inserts are more economical than single usage throwaway inserts or even conventional carbide or H.S.S. form tools.

INSERTS CAN BE CHANGED IN LESS THAN ONE MINUTE,
Practically eliminating machine down time for tool resharpening or replacement.

ONCE INSERT IS SET TO CENTER IT NEED NEVER BE RESET.
Since inserts are all made to a master length from front to back, inserts will always be on original centerline even when changing from job to job.

Cut-Off Blades

Typical Somma cut-off blades

Solid Carbide T-Type Cut-Off Blades

H.S.S. T-Type Cut-Off Blades

LOW COST!
MORE PIECES PER BLADE!
Longer wear, less galling, better finish, higher speeds than high-speed steels.
PLUS greater rigidity and up to 10 times the resharpenable tool life of carbide tipped tools.

Tools are supplied ready for use with cut-off angles sharpened on both ends so that tools can be used on front or rear slide and for either right or left hand operations.

GROUND ALL OVER

CONCAVE GROUND TOP

BLADE CENTERED

MS H.S.S. FOR GENERAL USAGE

SUPER-KUT H.S.S. FOR EXCELLENT WEAR RESISTANCE

T15PM H.S.S. FOR HIGHEST WEAR RESISTANCE AND RED HARDNESS

CUT-OFF ANGLE HAS TO BE SHARPENED BEFORE USING TO SUIT INDIVIDUAL APPLICATION

Resharpenable Quick-Change Insert Tool Posts for Davenport Machine

With Side Adjusting Insert Clamp

THE ONLY QUICK CHANGE TOOL INSERT THAT CAN BE RESHARPENED WITHOUT AFFECTING ITS ORIGINAL:

CENTER SETTING
PART DIAMETER SETTING
LATERAL SETTING
CAN ALSO BE USED WITH THROW-AWAY INSERTS
IDEAL FOR DATUM POINT APPLICATIONS

Typical Somma shave tools

To Make Your Job	*Phone Toll Free: 800-715-7278*	*Order Today &*
A Little Bit Easier	*Phone Toll Free: 800-715-7278*	*Have Tomorrow*

HOME PRODUCTS SERVICES SPECIALS ABOUT US CONTACT LINKS

ISMS - International Screw Machine Services, LLC
51 Eastern Steel Rd., Milford, CT�06460 - Tel: 203-874-0381 - Fax: 203-874-0382- Email: info@internationalscrew.com

Please Note: The mark, Davenport� is a registered trademark of Davenport Machine.