What is hydroforming used for?

Hydroforming is used to replace the older process of stamping two part halves and welding them together. It is also used to make parts both more efficiently by eliminating welding as well as creating complex shapes and contours.

What is hydroformed bike frame?

January 5, 2021. You may have come across this word, as hydroforming is a process utilized by many bicycle manufacturers when building their frames. So, what does it mean? In brief, hydroforming means forming and processing of metal using a high-pressure fluid. The process is also known as die molding.

How is hydroforming done?

Hydroforming is a specialized type of die forming that uses a high pressure hydraulic fluid to press room temperature working material into a die. High pressure hydraulic pumps then inject fluid at very high pressure inside the aluminium tube which causes it to expand until it matches the mold.

Which is an example of sheet hydroforming?

In general, any sheet metal material capable of being cold formed, such as carbon steel, aluminum, stainless steel, copper, and brass, is a candidate for hydroforming.

How is Hydro forming is similar to rubber forming?

The rubber acts somewhat like hydraulic fluid in exerting nearly equal pressure on all workpiece surfaces as it is pressed around the form block. Rubber-pad forming is designed to be used on moderately shallow, recessed parts having simple flanges and relatively simple configurations.

What are the advantages of hydro forming process?

ADVANTAGES OF HYDROFORMING PROCESS Hydroforming process reduced development costs. Shock lines, draw marks, wrinkling, and tearing associated with matched die forming are eliminated. Material thinout is minimized. Multiple conventional draw operations can be replaced by one cycle in a hydroforming press.

What is the most important parameter in hydroforming?

The most important parameters were the internal pressure of the liquid this was done by means of the pump (2 of figure 6).

What is explosive hydroforming?

Explosive hydroforming, also known as HERF (High Energy Rate Forming) or exploform, is a striking alternative to the more traditional process of metal hydroforming. Although the charge is relatively small, it is capable of generating enough force to mold the associated metal into the die.

What is explosive forming?

An explosive forming is one of the techniques to form a metal plate using high shock pressure from the explosion. An explosive releases its energy instantly so that an extremely high pressure with short duration occurs at the instance of explosion. Because of this effect, the metal plate may stop its deformation.

What is deep drawing process?

Deep drawing is a sheet metal forming process in which a sheet metal blank is radially drawn into a forming die by the mechanical action of a punch. It is thus a shape transformation process with material retention. This is achieved by redrawing the part through a series of dies.

Why won’t my handlebars tighten?

If there is, you may need to tighten the bike handlebars. To do this, loosen the two horizontal pinch bolts on the stem with a hex wrench. If your handlebars turn without your wheel turning, REI’s instructions recommend re-loosening the side bolts and then retighten the center bolt.

What does hydroforming do to a bike frame?

Proven effective in the world of high-end performance automobiles, hydroforming is the process of injecting fluid into a cylindrical frame tube to manipulate it into a more beneficial shape.

Why do they use hydroforming on the trek?

Hydroforming allows Trek engineers to bring complex aluminum frame designs, especially those with advanced aerodynamic properties, from the drawing board to the production line. Ask any engineer, and they’ll tell you the quintessential engineering shape is a circle.

What are the two major practices of tube hydroforming?

Tube hydroforming. In tube hydroforming (THF) there are two major practices: high pressure and low pressure. With the high pressure process the tube is fully enclosed in a die prior to pressurization of the tube.

What is the difference between high and low pressure hydroforming?

In tube hydroforming there are two major practices: high pressure and low pressure . With the high pressure process the tube is fully enclosed in a die prior to pressurization of the tube. In low pressure the tube is slightly pressurized to a fixed volume during the closing of the die (this used to be called the Variform process).