Subject = engineering Description = Harley Engineering specialise in the design, manufacture and installation of welded and fabricated sheet metal products. Category = engineering
requirements beyond their capacity, or to improve operation by moving forward pre-
product
ion processing
tubular
pipe
steel
supplies first-step processing, semi-finished parts, or finished parts
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development, technical advice
new
product
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development To bend
tubular
pipe is problematic because of it being hollow and cylindrical or pipe-like
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development, technical advice
The most common processes for bending
tubular
pipe is: ram, roll, rotary-draw, heat-induction, and sand-packing and hot-slab new
product
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development forming
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Ram
tubular
pipe bending was probably the first
tubular
pipe bending method used to cold-form materials
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This
tubular
pipe bending method pushes a die against the tube or pipe by new
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development a mechanical force, forcing the pipe to conform to the contours of the die
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Lacking internal support in the
tubular
pipe, this pipe bending process creates some cross section ovality
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The new
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development thinner the wall the more deformation of the
tubular
pipe is seen
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Maximum pipe bending angle is normally 90 degrees
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This is a commonly used
tubular
pipe bending process where high new
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development levels of cross section ovality are acceptable such as furniture tubing, conduit and handrails
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During roll pipe bending, a series of spool-like rollers apply pressure to the
tubular
pipe as it passes new
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development through them
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Pipe bending Operators change the location of the rollers to produce
tubular
pipe of the desired radius
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This pipe bending process is ideal for forming helical
tubular
pipe coils new
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development for heat transfer applications as well as long sweeping sections such as those used in
steel
construction-curved trusses and roof components for structures requiring large open spaces
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It deforms the
tubular
pipe new
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development cross section very little for such sweeping sections.Using rotary-draw pipe bending machines, a
steel
plug fits inside the
tubular
pipe while a rotating
steel
die forms the pipe to the radius of the new
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development die
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The
steel
plug, or mandrel, supports the pipe internally to reduce the amount of
tubular
pipe cross section flattening during pipe bending
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A
tubular
pipe bending clamp device secures new
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development the pipe to the die
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The
tubular
pipe bending machine rotates the die to the desired bend angle as a sliding pressure die forces the pipe to conform to the die radius
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After the pipe bending process, the operator extracts the mandrel from the
tubular
pipe, releases the clamp, then removes the bent pipe from the machine
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With proper tooling, this
tubular
pipe new
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development bending process is capable of producing high quality, tight-radius bends for a wide range of applications including football goalposts, davit arms and pneumatic conveying systems
