High Quality 6061 5083 3003 2024 Anodized Aluminum Pipe/ 7075 T6 Aluminum Tube
Structural and seamless tube are both extruded. That means a billet of material is forced through a hole in a die shaped to form the two dimensional cross-section you need. (We’ve called it the “toothpaste process” in the past and compared it to decorating a cake.)
Sometimes you want that extruded material to have a hole down the center. The simplest example is circular tube or pipe. for an explanation of the difference. Porthole and seamless are different ways of forming that hollow internal section.
In porthole, metal is forced around a shape that matches the hollow section you want to extrude. Physics being what it is, the tooling needs ribs to hold that shape in place, and the metal has to flow around them. That separates the metal as it extrudes, so a second die forces those sections back together. At the micro-structure level, the surfaces weld to each other, which means there’s a seam.
As the name suggests, seamless extruded tubes avoid this. The difference is that a forming mandrel is inserted into the billet of material from the rear, and pushed thorough until it’s very close to the opening in the die. The material flows through the gap, emerging with both internal and external dimensions fixed and without any seams.
-
LIVE
The Dan Bongino Show
2 hours agoBiden's Humiliating Send-Off (Ep. 2312) - 08/20/2024
150,629 watching -
LIVE
Benny Johnson
1 hour ago🚨 Joe Biden Loses His MIND Onstage At DNC in FINAL Humiliation CRINGE-Fest | Hillary, AOC MELTDOWN
9,637 watching -
14:12
Breaking Points
15 hours agoProtests ERUPT On DNC DAY 1: 1968 Again?
1.71K7 -
1:00:01
Steven Crowder
2 hours ago🔴 Joe Biden's Midnight DNC Rampage: One Massive Lie
151K277 -
1:33:17
Graham Allen
3 hours agoCHAOS In The Streets! The Demoncrats Are Insane! + Communism Is Coming!
51.6K121 -
2:22:09
Matt Kohrs
9 hours agoDNC Day 1 Recap , Major Economic Updates & Live Options Trading || The MK Show
36.7K6 -
24:58
BonginoReport
4 hours agoDemocrats Build A DNC Wall (But Only To Protect Themselves) (Ep.25) - 08/20/24
66.3K82 -
2:12:17
AP4Liberty
4 hours agoJoe Biden Returns From The Grave For Kamala
33.3K7 -
1:42:09
The Podcast of the Lotus Eaters
4 hours agoThe Podcast of the Lotus Eaters #982
47.9K31 -
1:57:16
Game On!
11 hours agoTom Brady and Stephan A Smith take over the internet!
64.8K3