Pipe threading is the process of cutting a screw thread into a pipe. It is a vital step to join two pipe ends mechanically. Pipe threads are not only used to make mechanical joints but also to leak-proof gas or liquid seal. The threading quality becomes essential as it directly influences the quality of joining two pipes. Precise machining of the thread form with no voids between the two threaded pipes is indispensable to achieve leak-proof quality.
There are various components involved in threading a pipe with top quality. This article covers insert types, infeed methods, steps to follow during threading, and what Copier Machinery offers to ensure optimum pipe threading.
When selecting a threading insert, one must be aware of whether to choose partial, full, or semi-full form. The partial form can be used for a series of samples, but it has a shorter lifespan because the nose radius is smaller than that of the full form, and finishing with another operation is necessary.
When a full form is used, there is no deburring needed after threading, but it requires different threading inserts. While using a semi-full form, no deburring is needed after threading but it requires different threading inserts, and finishing with another operation is also necessary.
Infeed methods dictate how the insert is applied to the pipe to create the required thread form. There are four-thread turning infeed methods; radial, flank, modified, and incremental infeed.
Copier Machinery's specialized pipe threading machine has radial and axial feeding, enabling the user to adjust tool holder positions. As per the operator’s requirement standards, dimensions and tolerances can be set to get the contour of the thread. Customized CNC control has data storage options, which allow subsequent operators to pull pre-set shapes.
Our beaver CNC and RTL ZX machines perform most of the standardized threading like NPT (National Pipe Thread) and NPS (National Pipe Straight). These have the same thread, angle, and pitch (threads per inch). The difference is that NPT threads are tapered and NPS threads are straight.
In addition, our machines have options to program different infeed, and they are compatible with various insert types. Copier’s inbuilt programs and customization at your fingertips mean that you don’t have to be concerned about complex entry programs and they help you thread pipes without any voids for industrial uses.