Kadimi Tool Thread Rolling Dies

Kadimi is the leading global supplier of Thread Rolling dies and offers a comprehensive range of products and services to the Automotive and Industrial Fastener Manufacturers World Wide. Several of the leading worldwide fastener makers have used our products for several years & we are an integral part of their supply chain.

Kadimi’s manufacturing facility combines the latest CNC machining technology with the traditional craftsmanship of a skilled and dedicated workforce. Investment in new equipment and training continues as part of our on-going philosophy “to set and maintain standards of quality and performance that exceed customer expectations”.

Products Offered

Kadimi manufactures flat thread rolling dies considering the specific needs of our customers very much into account. Kadimi offers customization in accordance to the required material and machinery specifications Our designs facilitate minimizing machine set up times and providing significant savings on costs per each threaded piece.

Different designs of thread rolling dies available in Metric and Inch sizes for Machine screw in the field of Machine Building, Automotive and Industrial fastener applications.

Bolt Maker – Single Face Dies
Boltmaker single face dies have a threaded profile that provides a uniform rate of penetration over approximately two-thirds of the die length. The remaining dwell section accurately sizes the thread. These dies can be used for rolling ASME 1A,2A and 3A as well as ISO class 6g and 4h right hand, single lead threads.

Kadimi standard Boltmaker dies are made from tool steel and suited for general purpose applications. Dies can be supplied on a special basis for other machines and face depths, as well as from other special materials. In addition, other special thread forms, left hand threads and multiple leads can be supplied.

Duplex Face Dies
Duplex dies have threads on both faces, offering twice the life of single face dies. Four settings may be used with duplex dies when the depth of the face is in excess of two thread lengths. These dies can be used for rolling ASME 1A,2A and 3A as well as ISO class 6g and 4h right hand, single lead threads. The minimum depth of the die face should be at least two pitches greater than the length of thread to be rolled. Select the nearest larger depth of the die face whenever possible.

Dies are treated with special proprietary surface treatment which provides even higher performance when rolling difficult to form materials. Dies can be supplied on a special basis for other machines and face depths, as well as from other special materials. In addition, other thread forms, left hand threads and multiple leads can be supplied; either as Duplex, single or split face dies.

Kadimi provides Tool Re-grinding services for its own and other manufacturer’s Thread rolling dies. Fastener and special formed parts manufacturers can experience significant cost savings through multiple re-use of tool material. Kadimi regrinding capabilities provides customers with numerous benefits, such as:

  • Reducing new die inventory through a regrind blank stocking program
  • Creating opportunities to reduce and eliminate slow-moving inventory through regrind conversion to desired thread specifications
  • Extremely favorable regrind tool life returns
  • Dedicated quality systems to ensure optimal performance – from receipt of regrind blanks to delivery of finished tools

The term knurling designates the process and the part being formed. Knurling like thread rolling displaces the blank material when the knurl die or dies is pushed agianst the work piece.

Common types of knurls are shown below:

There is wide range of flat thread rolling dies for different applications of tapping screws.

Kadimi manufactures Special Form Flat Thread Rolling dies for specific needs and supplying worldwide to automotive , aerospace, industrial applications in special material and surface treatments.

Special Form Thread rolling dies can be used to produce numerous shapes on thread rolling machines, such as components with grooves; slots; conical points; domed- and pointed-ends; combined grooves and conical points; curves; chamfers; and dog-points.

Special Features

LF TECHNOLOGY
Kadimi LF dies are developed to help roll the best quality fasteners without modifying any of the processes (e.g. blank preparation and machine operation). In controlling manufacturing variables to yield lap-free threadd fasteners, LF technology

  • Helps maintain normal production rates and machine speeds – even when rolling critical fasteners with harder materials.
  • Enhances control of grain flow, whereby LF dies begin forming the thread crest almost immediately; no other thread rolling dies in the world has this capability.
  • Improves Physical charateristics of the fastener due to controlled nature of material displacement. Specifically ,the smooth surface finish and compressive residual stresses introduced by rolling make rolled fasteners Stronger in fatigue, shear and tensile strength.


RRO: RADIUS RUN-OUT
Flat thread rolling dies with sharp corners on the run out threads generates stress concentration areas which result in fatigue cracks in the thread rolled screw. With the Radius Run Out (RRO) offered by KADIMI, the smooth radius in the root of the thread continues right up to the point where the thread blends in the shank of the screw. This Radius Run Out was designed for rolling high strength aerospace bolts, however, it is available on all KADIMI dies.

LICENSED PRODUCTS