 | DOM Tube Making Process Overview |
Below is a general description of Webco's DOM tube-making process. Inquire
for more detail on Webco's extensive engineering, customization, testing, and quality-control capabilities.
|
| Hollow
tubes for DOM (Drawn Over Mandrel) products are made in-house
by the weld mill department ensuring that the hollows meet
Webco's high quality standards. |
| All
tubes are treated with
drawing lubricant and the condition
of the lubricant
is closely monitored. |
| One
end of each tube is pointed (or swaged) to proper size. |
The
tubes are pulled over the mandrel and through the die to create
to the customer's specified design size. This process, called
cold drawing, may be repeated more than once to reach the
planned OD, ID, or wall dimension. Multiple draws can also
be used to increase the strength or improve the surface finish
of the tubes. During the drawing operation, the tubes may
be process annealed to increase the ductility of the material.
|
| Unless
finished to "as drawn" condition, the tubes are
stress relief annealed or normalized in a controlled atmosphere
continuous furnace. |
| The
tubes are straightened to meet the customer's application
requirements. |
All
tubes are inspected to either an industrial test specification
or to special customer testing requirements with non-destructive
electric test methods.
|
The
tubes are cut to the finished length and the ends are finished
by a de-burring or OD/ID chamfering process. If required,
the tubes are stenciled with specified information. All tubes
are bundled in hex shape with proper lot identification tags.
|
The
final dimensions are inspected and verified. Destructive tests
(if required) are performed. If any mechanical property or
other special testing is required, a proper sample will be
collected for further testing at the metallurgical testing
lab.
|
|
|
 |
Learn More
Technical Terms ::
Formulas ::
ERW Process ::
DOM Process ::
BWG Gauge Chart ::
ISO/QS 9000 Information ::
MSDS ::
Directions to Facilities ::
Terms & Conditions of Sale ::
Recent News
Webco Industries, Inc. Reports Fiscal 2009 Fourth Quarter and Year-End Results
For its fiscal 2009 fourth quarter, the Company reported a net loss of $16,000, or a loss of $0.02 per diluted share, compared to net income of $5,345,000, or $7.02 per diluted share, for the same quarter in fiscal 2008. [ 10/13/2009 ] Read More...
Webco Industries, Inc. Reports Fiscal 2009 Third Quarter Results
For its fiscal 2009 third quarter, the Company reported a net loss of $2,993,000, or a loss $3.93 per diluted share, compared to net income of $3,417,000, or $4.49 per diluted share, for the same quarter in fiscal 2008. [ 6/8/2009 ] Read More...
Webco Industries, Inc. Reports Fiscal 2009 Second Quarter Results
For its fiscal 2009 second quarter, the Company reported a net loss of $4,993,000, or $6.54 per diluted share, compared to net income of $3,514,000, or $4.63 per diluted share, for the same quarter in fiscal 2008. [ 3/11/2009 ] Read More...
Webco Industries, Inc. Reports Fiscal 2009 First Quarter Results
For its fiscal 2009 first quarter, the Company reported net income of $5,083,000, or $6.65 per diluted share, compared to $4,657,000, or $6.14 per diluted share, for the same quarter in fiscal 2008. [ 12/1/2008 ] Read More...
Webco Industries, Inc. Reports Fiscal 2008 Fourth Quarter and Year-End Results
For its fiscal 2008 fourth quarter, the Company reported net income of
$5,345,000, or $7.02 per diluted share, compared to $2,887,000, or $3.81
per diluted share, for the same quarter in fiscal 2007. [ 10/6/2008 ] Read More...
|
|
