got to ask - why?
the video shows a very inaccurate square tube being formed. I cant think of any reason why doing this would be a good idea. For example, to make construction steel you wouldn't get it certified so you would go and buy the right sized box section which would have known strengths and stresses. I'm going to be enlightened by the reply's, i'm sure there is a reason which i haven't come across yet. (looking forward to it Frank).
Citizen of the "New democratic" Republic of Britain, liberated from the EuroNation
Almost all Hollow section tubing square or rectangular is cold drawn and is either sent through a series or rollers for shape then sized through a final die as in very high speed production or drawn through a single shaping and sizing die that starts out as a conical cylinder transitioning into the final shape as in Jon's postOriginally Posted by MeJasonT
The extreme larger and thicker sizes are sometimes passed through an induction heating ring to reduce the amount of force required to achieve the final shapes.
Some of the smaller and thinner sizes are made in a 1 step process starting out as strips and die formed before being seam welded the same as round welded tubing is made but I only know of this being done in square sizes
Hammering cylindrical tubing into square or rectangular shapes is mostly done for short lengths of architectural purposes usually having both the round and the desired shapes transitioned from one shape to the other as in balusters for railings or awning supports Hammering to a true size can be achieved by inserting a mandrel
When I had a hammer mill I made all sorts of shapes and sizes for decorative and sometimes structural items
Never try to tell me it can't be done
When I have to paint I use KBS products
MeJasonT (Oct 23, 2018), mwmkravchenko (Sep 30, 2019), PJs (Oct 29, 2018)
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