Custom 5053 5083 schedule 40 aluminum tube 7075 large diameter aluminum pipe
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.
-
UPCOMING
Benny Johnson
5 minutes agoTriumphant Trump TROLLS Kamala by Making Fries At McDonalds | Libs SEETHE as They ENTER PANIC MODE🍟
-
1:35:03
Graham Allen
3 hours agoTrump Will “SUPERSIZE” America While Kamala Hates Christians!!
35.1K42 -
UPCOMING
Caleb Hammer
17 hours agoDebt Princess Begs Daddy To Save Her | Financial Audit
567 -
UPCOMING
LFA TV
15 hours agoMCWINNING THIS ELECTION! | LIVE FROM AMERICA 10.21.24 11am EST
2.73K -
1:34:18
Jeff Ahern
2 hours ago $10.38 earnedMonday Madness with Jeff Ahern (6;10 am Pacific)
36.2K -
LIVE
2 MIKES LIVE
13 hours agoThe Mike Schwartz Show 10-21-2024
1,180 watching -
28:53
BonginoReport
4 hours agoKamala's Most Dangerous Play: Denouncing God (Ep.68) - 10/21/24
49.3K92 -
1:21:26
Game On!
15 hours ago $7.85 earnedNew year, same results! Mahomes dominates the 49ers!
18.6K13 -
15:16
NC Dirt Hunter
3 hours agoA good day Metal Detecting Civil War relics on an OLD plantation. #history #civilwar
25.6K4 -
9:45
Dr. Nick Zyrowski
12 hours agoHow To Do One Meal A Day Diet - This Is How I Eat
28.9K5