CENTRALIZER
A method of manufacturing a centralizer having a plurality of blades includes cutting the plurality of blades from a metal sheet; hardening the plurality of blades using a heat treatment process; and welding the plurality of blades to a tubular body. The blades may be welded to the tubular body using a plurality of weld seams.
1 . A method of manufacturing a centralizer having a plurality of blades comprising:
cutting the plurality of blades from a metal sheet;
hardening the plurality of blades using a heat treatment process; and
welding the plurality of blades to a tubular body.
2 . The method of claim 1 , wherein the plurality of blades comprise a hollow blade.
3 . The method of claim 1 , wherein hardening the plurality of blades comprises using a first heat treatment to increase the plurality of blades to a first hardness.
4 . The method of claim 3 , wherein hardening the plurality of blades comprises using a second heat treatment to decrease the plurality of blades to a second hardness.
5 . The method of claim 1 , wherein welding the plurality of blades comprises using a plurality of spaced apart weld seams to attach each blade to the tubular body.
6 . The method of claim 5 , further comprising adjusting a collapse force of the plurality of blades by using a plurality of spaced apart weld seams to attach each blade to the tubular body.
7 . The method of claim 6 , wherein the plurality of blades comprise a steel alloy material having a carbon equivalent content in a range from 0.2 to 0.6.
8 . The method of claim 7 , wherein the plurality of blades comprise a hollow blade.
9 . The method of claim 1 , wherein the plurality of blades comprise a steel alloy material having a carbon equivalent content in a range from 0.2 to 0.6.
10 . The method of claim 1 , further comprising mechanically forming the cut metal sheet into a hollow blade.
11 . The method of claim 1 , further comprising cutting the tubular body is cut from a second metal sheet and rolling the cut second metal sheet into a tubular shape.
12 . A centralizer, comprising:
a body having a bore therethrough; and
a plurality of hollow blades attached to the body, wherein a plurality of weld seams is used to attach each blade to the body.
13 . The centralizer of claim 12 , wherein the plurality of hollow blades comprises a steel alloy material having a carbon equivalent content from 0.2 to 0.6.
14 . The centralizer of claim 13 , wherein the plurality of hollow blades were heat treated to change a hardness of the plurality of hollow blades.
15 . The centralizer of claim 13 , wherein the body is made of the same steel alloy material as the plurality of blades.
16 . The centralizer of claim 12 , wherein the plurality of hollow blades is positioned at an angle relative to a central axis of the body.