Welder World Blog

Archive for July, 2010

Hello,

Sometimes to know where you are headed, you need to look back at history.
That is what we are going to do today, look at the history of welding.

The History of Welding
When you drive your car or look at a light fixture in the street or
open your microwave, chances are that there is something in any of
those items that has been welded. These products and others have
been a part of the process of welding for more years than you might
imagine.

Welding actually started a very long time ago during the Middle
Ages. Many artifacts have been found that date back to the Bronze
Age. These have been small boxes that were welded together with
what is called lap joints; no one is exactly sure what these were
used for, but this was important to that time.

The Egyptians also made a variety of tools by welding pieces of
iron together. Perhaps this is where Maxwell’s Hammer comes later?
Who can say! Then came the rise of the Middle Ages and many people
there were able to use blacksmithing for iron. Different
modifications were made along the way until the welding that is
used to day was developed.

There were several significant inventions in the 1800s that
influenced welding included here:

The invention of acetylene by an Englishman named Edmund Davy.
Gas welding and cutting became known and a way to cement pieces of
iron together.
Arc lighting was a very popular part of welding after the electric
generator became known.
Arc and resistance welding become another popular aspect of welding.
Nikolai N. Benardos receives a patent for welding in 1885 and 1887
from America and Britain.
C.L. Coffin receives an American patent for a arc welding process.

After the 1800s many more patents and inventions were made in order
to create more ways of doing welding but one of the greatest needs
would come much later during World War I because this process was
needed to create arms. Because of the demand welding firms became a
staple of America and Europe because the war needed welding
machines and electrodes to go with them.

During the war people really got a chance to look at how welding
worked and it became a very popular way of work. So much so that in
1919 the first American Welding Society was begun. This nonprofit
organization came directly out of through a group of men who called
themselves  the Wartime Welding Committee of the Emergency Fleet
Corporation (Source: Miller Welds).

The 1950s and 1960s were also a significant time for welding
because a welding process using CO2 was discovered and a variation
of this form of welding that used inert gas became very popular in
the 1960s because it produced a different type of arc.

There have been a number of improvements in the welding trade over
these years and today the process has added two areas, friction and
laser welding. These two have created a more specialized field and
therefore more opportunities for learning.

One interesting point about laser welding is that those people who
use it have found that is a tremendous heat source so it can
actually weld both metal and non-metal objects.

___________________________________________________________________
___________________________________________________________________

Here is a link to a Web Page that covers this first email:
http://www.welderworld.com/history-of-welding/index.php

Have a good one,
Ivan Irons
WelderWorld.com

P.S.
There is more…If you sign up as a member of Welder World Community, you
will get special access to 2 Free eBooks on the site. The eBooks
are about Welding Basics.  Here is the best part, becoming a member is Free!

Wait…The Welding Basics eBooks are Free!
Yes!

What do I get out of it you ask?  A bunch of like-minded Welders and Metal Working Friends
around the world!

Sign Up Now to get all these Welding Benefits!
http://www.welderworld.com/index.php?option=com_comprofiler&task=registers

Hello,

Today we start with basics…What is Welding?  We have to start with
a good base knowledge before we get to more complex ideas.  Also,
make sure you get your Instructions for 2 Free Welding eBooks at the
end of Today’s Lesson.

What is Welding?
Wikipedia defines welding as “a fabrication process that joins
materials, usually metals.” This is done by melting the part of the
materials to be joined and adding some additional molten joining
material. When the molten material cools, it forms a strong bond or
joint.

Welding is the most widely practiced way of joining metals together
due to the efficiency and economy of the process. It has been
estimated that approximately 50% of the Gross National Product of
the USA arises from activities that are in some for or another
related, perhaps remotely, to welding. As an example, farming may
appear to have nothing to do with welding, but the equipment the
framer uses to grow and harvest his crops will have used welding in
their manufacturing process.

Until the advent of the 20th century, welding was confined to
blacksmith shops where two pieces of metal were heated to very high
temperatures in a forge and then hammered together until the
joining occurred. This is what is called forge welding.

With the introduction of electricity into industrial processes,
welding became both quicker and easy, and also more economical.
Today there are 4 types of welding techniques that are commonly used.

- The most basic for is Arc Welding where the parts to be joined
together are brought into contact with strong electrical current
and heated. The molten parts are then joined together to form a
weld. This is the low technology end of welding in its cheapest and
least sophisticated form.

- Gas Welding is generally used for repair work especially in the
case hollow items like tubes and pipes. Hot gas is forced onto the
surfaces to be welded. This procedure requires the parts to be
subjected to less heat and is suitable for material that may be
damaged by exposure to high temperature. For this reason it is used
in the jewelery industry which has to work with soft metal with
low melting points.

- Resistance Welding requires that an additional sheet of material
is used to cover the pieces that are to be welded together. This
provides great strength to a weld, but the process requires
expensive equipment and also the use of additional material to
encase the weld which makes it expensive and not suitable for all
applications.

- Laser Welding is the most modern technology available. High
intensity lasers can be tightly focused and produce controllable
heat on the surfaces to be welded very quickly. This is perfect for
material which can be damaged by prolonged exposure to extreme
heat. Laser welding is very accurate and can be used to produce
even the smallest of welds. However, because of the high capital
cost involved in purchasing this equipment, the cost of welding is
also high.

Although the perception of welding is that of a simple process of
heating and joining, it is a high technology industry with huge
amounts being spent of research and development to find stronger,
more accurate and cheaper methods. The welding process plays a big
role in metallurgy with a constant effort underway to find newer
and more weld friendly alloys.

___________________________________________________________________
___________________________________________________________________

Here is a link to a Web Page that covers this first email in more depth:
http://www.welderworld.com/what-is-welding/2

Have a good one,
Ivan Irons
WelderWorld.com

P.S.
There is more…If you sign up as a member of Welder World Community, you
will get special access to 2 Free eBooks on the site. The eBooks
are about Welding Basics.  Here is the best part, becoming a member is Free!

Wait…The Welding Basics eBooks are Free!
Yes!

What do I get out of it you ask?  A bunch of like-minded Welders and Metal Working Friends
around the world!

Sign Up Now to get all these Welding Benefits!
http://www.welderworld.com/index.php?option=com_comprofiler&task=registers

How to use car batteries to do emergency welding when out four-wheeling (or any time for that matter.)

Learn how to care for and maintain arc welding electrodes from an arc welding expert in this free DIY video. Expert: Malcolm MacDonald Bio: Malcolm MacDonald graduated from Connestoga College in 1968 taking the Fitter Welding Program. Filmmaker: Melissa Schenk

• Package Quantity: (1) 12 Piece Unit
• Amperage Rating: 140
• Output Current: DC
• Input Voltage: 115
• Phase: Single

Product Description
Millermatic« 140 with Auto-Set MIG Welder Amperage Rating: 140 Output Current: DC Input Voltage: 115 Phase: Single Duty Cycle: 90A/18V@20% Width: 10-5/8 Height: 17-1/2

Miller 907335 Millermatic 140 Auto-set Mig Welder

• Great for Aluminum MIG Welding with the Handler 210
• Available in an economical 10 ft version or in a 20 ft version that provides extended reach.
• Usable on 16 gauge (1.6 mm) up to 1/4 in (6.3 mm) aluminum with the Handler 210.

Product Description
The Hobart DP-3035-10 Spoolgun is designed for use with the Hobart Handler 210 MIG Welder, Item# 1646189. Application: Spoolgun, Works With: Hobart Handler 210 MIG welder, Weld Thickness (in.): 1/4, Cable Length (ft.): 10

Hobart 300199 DP-3035 Direct Plug-In Spool Guns For Use With Handler 210 MIG Welder

Learn what tig welding is from an expert in arc, tig and mig welding in this free DIY video. Expert: Malcolm MacDonald Bio: Malcolm MacDonald graduated from Connestoga College in 1968 taking the Fitter Welding Program. Filmmaker: Melissa Schenk