Pipe / Tube Bending

pipe bending, exhaust pipes, tube bending
Image By: Flickr

Tube bending is something of a lost art with most practitioners finding it to be difficult and hard to fine tune. For most, the process is one fraught with trial and error. While there have been a number of developments in the practice, there are some basic fundamentals that if followed, can make it easier.

Types of pipe tubing methods

In getting started, there are a few basics to get acquainted with. One of these is understanding the different, typical pipe tubing methods.

  • Ram-Type Bending: As one of the older methods of pipe tubing, this method employs a hydraulic – powered ram to push a tube along rollers or pivots.
  • Roll Bending: Best used for larger construction work, this method entails three rolls in a pyramid orientation, either horizontally or vertically.
  • Compression Bending: This uses a compression die or follow block that is used to bend the piece in question round a stationary constant.
  • Rotary Draw Bending: This method is most appropriate, where accuracy is a priority. With the use of a mandrel, the process supports material flow with a high level of precision.
pipe bending, rotary bending machine, tube bending
Source: Wikimedia

Achieving The Perfect Bend

If you intend to take on a tube bending job, there are a number of considerations that you can make to achieve the perfect finish. Of these, nothing is more important than making sure you have a good work space set up. This rings true in other industrial activities such as welding.

The type of pipe bending being done will ultimately influence the setup that is required. As an example draw bending demands a well structured tube with good welds. In this regard one needs to ensure the right type of lubricator and equipment is used. In all, these fundamentals are the first step in getting a tube bending job done.