GUHRING ER90202501220 Cobalt 1/2-20 RH ROLL FORM TAP (NO CHIPS) H5 5-Flute NEW!!

Description: GUHRING ER90202501220 Cobalt 1/2-20 Right Hand ROLL FORM (NO CHIPS) TAP H5 5-Flute NEW!! 1-Pc. ************************************************* FREE SHIPPING!! *************************************** This is a new GUHRING part number ER90202501220 HSS-E (Cobalt) 1/2-20 Roll Form Tap. The tap size 1/2-20 UNF (1/2" Fine Thread). This is a Form Tap that is coated and made from HSS-E (Cobalt) and has axial coolant (through hole). This is a right hand tap. Comes in protective plastic tube as shown, some tubes have some residual glue which is easily removed. See pictures for actual item and condition. Note that this tap "forms" the threads, it does not "cut" the threads like other taps, therefore it does not produce chips like other (cutting) taps. It is universally accepted that formed threads are stronger than cut threads. When threads are formed, the grain of the material is compressed, particularly at the root and crest of the thread form. While a cut material’s grain structure has been “fractured” by the cutting action of the tool. Form taps work better at a speed up to 2 times faster than cutting taps for increased production. See below for advantages and disadvantages of Form Taps. This listing is for ONE (1) GUHRING ER90202501220 Right Hand Cobalt 1/2-20 ROLL FORM (NO CHIPS) TAP H5 5-Flute NEW!! Sold as 1-Piece (each). There is a discount for multiple taps. Thanks for looking!! From the manufacturer: Forming taps create thread by displacement of material within the hole. The formed material assumes the shape of the thread form of the tap without the creation of chips. Flutes are replaced by lubrication grooves to provide some relief from the friction created during the process. Other features of the cutting tap, like chamfer, are altered to address the forces required to cause the material being threaded to assume a new form. Tap Lands separated by flutes are replaced by high areas called lobes. These lobes are relieved to reduce surface contact with the work material. Friction reduction is a major objective in successfully forming threads. They are also a likely solution to the challenges of tapping “blind” holes: as forming taps produce no chips, there are no issues with chip interference and removal. Forming taps require a slightly larger hole, as the material being threaded flows into, as well as away from, the threads of the tap. The finished minor diameter of the hole will be smaller than the unthreaded hole when the process is complete. It should also be understood the Forming taps run better at speeds 1-1/2 to 2 times faster than a cut tap, and require much more attention to lubrication of the tool, as friction between the tap and the workpiece can create problems with generated heat and torque forces imposed on the entire set-up. It is universally accepted that formed threads are stronger than cut threads. When threads are formed, the grain of the material is compressed, particularly at the root and crest of the thread form. While a cut material’s grain structure has been “fractured” by the cutting action of the tool.Forming taps are limited in use to those materials malleable enough for the process, like non-ferrous metals, aluminum, and soft steel. They also produce a thread-form that is slightly different in appearance when compared to thread produced by a cutting tool.This type of tap is also a likely solution to the challenges of tapping “blind” holes: as forming taps produce no chips, creating no issues with chip interference and removal.Guidelines for using thread forming taps:Thread forming taps require a larger pre-tap hole size than a cutting tap. Tapping with too small of a pre-tap hole size results in excessive tap wear, torque and possible tap breakage.Forming taps require good lubrication. Cutting oils are generally preferred because of their lubricity compared to water soluble coolants The process of cutting the threads in a hole is called "tapping" the hole. Guhring offers a full range of taps for the creation of internal thread forms. Coarse Thread Series UNC & Metric M is the most commonly used thread system in the majority of screws, bolts and nuts. The UNC coarse thread is often used for quick assembly or disassembly. Fine Thread Series UNF & Metric Fine MF is used for applications that require higher tensile strength than the coarse thread series and where thin walls are required. Using only premium substrate materials such as cobalt, powdered metal cobalt and carbide, Guhring taps are designed to last longer and provide high quality thread results. Guhring taps are produced to both ANSI and DIN specifications for a variety of applications. The color ring system allows the end user to quickly choose the correct tap style for the material that is being threaded. 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. See video 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.

Price: 14 USD

Location: Chardon, Ohio

End Time: 2024-09-26T18:06:25.000Z

Shipping Cost: 0 USD