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What is formtapping?
For many engineers, the concept of “Form” tapping or cold forming can be a stumbling block in itself, simply because it is an entirely unfamiliar way of producing a thread.
Forming taps however provide multiple advantages. For ductile work materials, thread forming can provide better size control and stronger threads while improving tool life and productivity.
Unlike thread cutting, no material is removed during thread forming. Rather, the process displaces the material to generate the thread form.
Since the metal's structure is cold worked along the thread profile, the threads produced are generally stronger and have a smooth, burnished surface finish. Cold forming taps can be operated at higher speeds and feeds than conventional taps.
Cold forming technology has been used to produce threads for more than 100 years. Tap designs have changed considerably in that time. This combined with the newest coatings guarantees a very long tool life in most applications.
Forming taps must be applied in materials that cold form well. This includes steels, stainless steels, light metals, light metal alloys and other materials with tensile strength to 1200 N/mm². Generally, materials that produce a continuous chip when drilling are good candidates for thread forming.
In combination with Formdrill, thread forming will boost quality and throughput.
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An extremely versatile range of Roll Form - or Forming - Taps, each of which can be used for producing both through and blind holes. Designed to accurately and cost effectively produce an internal thread by deformation of the component material, this process produces no chips, resulting in a stronger thread that is capable of withstanding increased load-bearing capabilities. They can also be operated at higher speeds than conventional thread cutting taps, resulting in increased productivity:
- HSS Roll Form Taps
- HSCo Roll Form Taps
- Solid Carbide Roll Form Taps
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Our roll forming taps (Flowtaps) are made of high quality high-speed steel and can be ordered with lubrication grooves and coatings for special applications. The square shaft at the end is optimally designed to transfer the required torque to form the threads.
Flowtaps are available in
- American Standards
- Pipe Standard
- Metric Standards
Lubrication grooves and special coatings are also available
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The ECO thread former Protodyn Cap from Walter Prototyp has been developed to guarantee optimal internal coolant supply. The innovative, front face radial coolant outlets mean the tool has a higher degree of stability in comparison to conventional thread formers with internal cooling.
ECO thread former Protodyn CAP
Significantly increased tool life in terms of external coolant supply, particularly with greater thread depths.
Equally suitable for use in blind and through holes.
Optimised for wet machining, but minimum quantity lubrication is also possible.
Greater tool life due to the TIN-coating that has been specially modified for thread formers.
The HSS-E thread former PROTODYN S Synchrospeed has been specially developed for use in machines with synchronous spindle. The tool is particularly suitable for producing threads in all ductile materials with a strength of up to 1200 N/mm² or at least 10% expansion.
Synchrospeed-thread former Protodyn S Synchrospeed
Universal use (through holes and blind holes)
High tool life through HSS-E
High accuracy to gauge thanks to pointed polygon profile
High process reliability thanks to short thread component and special geometry
High degree of efficiency thanks to special surface treatment
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Thread forming with centertap offers the exact same advantages as flow punch forming. It is a chip- less process in which the material is rendered flowable and displaced from the thread root into the crests. It is similar in principle to the rolling of external threads. centertap is available for all common thread sizes.
Advantages of Thread Forming
Non-cutting manufacturing process
Reinforced orientation of the material fibers results in threads that can withstand high drawing forces
Highly accurate threads, therefore miscutting is not possible
Low wear after multiple connections due to increased hardness
3 to 10 times faster than thread cutting
Increased life due to special TiN coating
Reduced friction, less burr formation and scoring
Can be automated
For further details and more information, please visit our website.
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Always in Top Form with EMUGE InnoForm
With the publication of the new EMUGE Catalogue 130, EMUGE became
the first threading tool manufacturer worldwide to introduce a programme
of cold forming taps specially designed for the machining of specific materials or material groups. While this was common only for cutting
tools in the past, we have now succeeded in designing cold forming
taps especially for the special properties of single material groups,
partially increasing performance in a dramatic way.
Conventional cold forming taps were made for the use in all ductile materials: potential performance features in defined applications were simply wasted
in the process.
EMUGE has made painstaking investigations into the mechanisms of cold
forming, and developed a perfectly new tool generation from the results.
With 7 basic geometries, all of them available in different designs, we
want to make sure that performance can be increased noticeably.
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Pointing the way in thread production As a strong brand of the KOMET GROUP® , JEL® and its innovations of stand for modern thread production.
From conventional thread production to the technologically sophisticated thread milling tool, we offer economical systems either as standard tools or specific application solutions.
Solutions for economy and precision:
Introduction of the drill thread milling cutter in Europe
Roll form taps with brazed carbide strips for maximum tool life
Modular PCD tools for several operations with the same tool for the shortest possible machining time
Thread milling in steels with 45-60 HRC from M1
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Threading solutions from Walter Prototyp guarantee the highest process reliability.
Our expertise in substrates and coatings optimize machine output, thanks to higher cutting speeds and fewer required tool changes. Our tools can be used in a broad spectrum of materials and applications, even in new and exotic materials
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Sandvik Coromant is introducing a new family of rigid threading tools for the oil, gas and mechanical engineering sectors from Sandvik Coromant. These new tools provide a high level of stability for threading applications in demanding industries, where precision is paramount. A guide rail locks the insert in position to give stability for precise, repeatable thread cutting and assured indexing of the insert.
Sandvik Coromant has a new family of rigid high precision threading tools for the oil, gas and mechanical engineering industries, CoroThread 266. First to be launched is CoroThread 266 for 22mm and 27mm insert size.
Threading stability is achieved with a new design of iLock insert locking interface. This keeps the insert rigid, maintains the correct threading profile and reduces out-of-specification product rejection. The insert has a slot for each of its three indexible cutting edges. One slot is located on a raised guide rail on the new interface of the shim. This guide rail locks the insert in its correct position in the pocket, giving repeatable accuracy with each threading pass. Correct fitting and precise indexing can be done by touch alone, because the CoroThread 266 insert sits only on the guide rail, each time, every time and is screwed in place. It is impossible to misfit the insert with the new rigid rail technology, or for the insert to move once fixed.
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Catalogue Turning and threading
• External machining
• Internal machining
• Indexable inserts
• Thread turning
Perfection: ARNO tools in use!
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The second is for the Type-B inserts, a combination of ground profile and sintered chip-breaker threading inserts. Unlike most other manufacturers' inserts, this combination ensures consistent high quality thread, precise shape and dimensions while ensuring the chip flow. Two different unique styles of chip-breaker were designed to suit the different specific requirements of Internal threads and External threads.
Type-B inserts are offered in one grade, BMA, for general use.
Carmex offers a wide range of threading tool holders for external or internal threads . Also available are carbide shank toolholders.
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ISCARTHREAD
Threading Tools, Threading Inserts, Thread Inserts
The ISCAR threading line includes a large variety of thread standards on laydown triangular inserts. The M-type inserts with chipformers provide high profile accuracy and optimal chip flow. Regular threading insert types are ground and available in a variety of high-quality, high-performance cutting grades, uncoated and coated, including PVD and CVD coatings. For customer convenience, standards for threads and pitch are clearly marked on each insert.
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M -TYPE INSERTS
High Profile Accuracy
Every insert has an indexable accuracy of 0.015mm guaranteed.
Cost Advantage
TaeguTec uses advanced technology to ensure economical production and a high level of accuracy. This guarantees the customer improved performance and product consistency
Excellent Chip Control
A unique chipformer delivers outstanding performance.
Clear and Easy Identification
The designation mark on the insert clearly defines application, thread standard and pitch.
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Adjustable re-treading tool for external male thread forms. No measuring of thread required, as the hardened stell blades will adjust automatically to any thread dia and pitch.
Usable for all kinds of threads, Inch and metric, right hand or left, fine and course.
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An adustable re-treading tools for internal female threads. Usable for inch and metric threads, fine or course. Available from 8mm-54mm.
The blade is guided by the undamaged threads to regroove the damaged threads
Information available on request
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Sandvik Coromant is introducing a new family of rigid threading tools for the oil, gas and mechanical engineering sectors from Sandvik Coromant. These new tools provide a high level of stability for threading applications in demanding industries, where precision is paramount. A guide rail locks the insert in position to give stability for precise, repeatable thread cutting and assured indexing of the insert.
Sandvik Coromant has a new family of rigid high precision threading tools for the oil, gas and mechanical engineering industries, CoroThread 266. First to be launched is CoroThread 266 for 22mm and 27mm insert size.
Threading stability is achieved with a new design of iLock insert locking interface. This keeps the insert rigid, maintains the correct threading profile and reduces out-of-specification product rejection. The insert has a slot for each of its three indexible cutting edges. One slot is located on a raised guide rail on the new interface of the shim. This guide rail locks the insert in its correct position in the pocket, giving repeatable accuracy with each threading pass. Correct fitting and precise indexing can be done by touch alone, because the CoroThread 266 insert sits only on the guide rail, each time, every time and is screwed in place. It is impossible to misfit the insert with the new rigid rail technology, or for the insert to move once fixed.
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These sets consist of an assortment of Hexagon Rethreading Dies in American National form of thread. These dies are neatly packed in a wooden case.
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These sets consist of an assortment of Hexagon Rethreading Dies in American National form of thread.
These dies are neatly packed in a wooden case.
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Octicut® Threading Tools
Maximize productivity and lower your cost per cut with Octicut® quality and variety.
- Octicut® Threading Inserts
- Miniature Series External Toolholders
- Adjustable Helix Threading System
- Internal Bars
- S-Loc™ Toolholders & Inserts
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Vargus - #1 in Thread Turning
Vardex has earned its reputation as the #1 indexable Thread Turning system worldwide.
Vargus, a pioneer in its field, developed the Vardex indexable laydown thread turning insert technology nearly 40 years ago. The Vargus patented designs continue to be the industry standard With over 6000 different tools, Vargus offers the largest range of Thread Turning solutions to the machining specialist. Some even call the Vardex catalog "The Bible of Threading"!
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Advanced material technology, plus the proven performance of Valenite chipbreakers makes the ValTHREAD insert line the most productive laydown, threading system. The application-matched PVD coated grades cover a full range of threading operations on most workpiece materials including small-diameter ID threading. Engineered to work together, the chipbreakers enhance the performance of Valenite grades to offer a complete threading system.
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