The 4g overhead stick welding test is often given along with the 3g vertical plate test.
NOTE: There is no 3G or 4G test position in pipe welding. Also, since most pipe welds are groove welds, they are identified by the letter G. We will discuss more about the techniques used for welding in the various positions later in this training manual, but for now, let's talk about the effects of heat on metal. 1G - In position 2G - Horizontal 3G - Vertical 4G - Overhead 1F - In position - looks like a 'V' 2F - In position - looks like and upside down 'T' 3F - Vertical 4F - Overhead. 2GF or 4GF (as examples) are combination Groove and Fillet welds done with a permanent backing strip that is removed before cutting up and bend testing. Hope that helps.
Certain welding codes provide for an all position qualification by taking them together.
AWS D1.1 for example allows for a welder who passes both 3g and 4g plate tests to be qualified for all plate positions.
So this video is on welding the 4g overhead portion.
if you have not seen the 3g vertical welding test video yet, just click here.
if you have not seen the 3g vertical welding test video yet, just click here.
My best advise for this 4g Stick welding test
- clean mill scale with a sander or grinder about 1/2' away from the bevel
- take care to have an even and full 1/4' gap
- set amperage to a setting that allows you to hold a very tight arc without sticking the rod
- hold a tight arc and use a very slight drag angle
- position your hands in such a way where balls of slag dont get trapped in your gloves
- make sure you are not stepping on your lead.
- keep rod movement to a minimum.
click here to visit the weldmonger store
A word on arc blow.. Pjl language monitor meaning.
(arc blow is when magnetic forces are created around the arc that can cause arc wandering)
Even though its important to use enough amperage, (120-130) using too much amperage can cause arc blow.
You will notice in the video, that I have a clamp on the end of the plate. that was an experiment to see if it would help prevent arc blow.
I clamped the ground clamp to that clamp hoping it would break up any magnetic fields and it actually seemed to work.
The first root pass I welded was at 135 amps and that was a bit hot and I did experience quite a bit of arc blow on the last few inches of rod.
so That is why I settled on 120-125 amps.
120 amps was just about hot enough, and I didnt fight with arc blow like I did at 135 amps.
Even though this video is mainly intended to provide tips for passing an overhead welding test, the same tips apply to welding overhead on almost anything.
So whether you are crawling up under a trailer to weld a bracket or a hitch, or taking a welding test, set the amperage hot enough to where you can hold a tight arc without the rod sticking….
..and then hold a tight arc.
That is the best advise I can give.
one more thing.
always plan one bead ahead.
leave yourself plenty of room to get that next bead in there.
You will notice in the video, that I have a clamp on the end of the plate. that was an experiment to see if it would help prevent arc blow.
I clamped the ground clamp to that clamp hoping it would break up any magnetic fields and it actually seemed to work.
The first root pass I welded was at 135 amps and that was a bit hot and I did experience quite a bit of arc blow on the last few inches of rod.
so That is why I settled on 120-125 amps.
120 amps was just about hot enough, and I didnt fight with arc blow like I did at 135 amps.
Even though this video is mainly intended to provide tips for passing an overhead welding test, the same tips apply to welding overhead on almost anything.
So whether you are crawling up under a trailer to weld a bracket or a hitch, or taking a welding test, set the amperage hot enough to where you can hold a tight arc without the rod sticking….
..and then hold a tight arc.
That is the best advise I can give.
one more thing.
always plan one bead ahead.
leave yourself plenty of room to get that next bead in there.
see more stick welding videos
To be effective on their job welders need to know how to read
blueprints and drawings.
blueprints and drawings.
Welder Job Description Example
What Does a Welder Do?
Welders are responsible for designing, cutting, and permanently joining metal parts together through the application of appropriate welding techniques.
Their job description entails fusing metal materials together using high heat equipment and welding processes such as MIG, TIG, and electric arc welding.
Welders work with a range of materials and equipment in fitting and assembling metal components to form structures.
They operate hand-welding and flame-cutting equipment such as oxyacetylene torch, electric arc machine, and robotic welding cells.
They also handle metal materials such as steel, iron and titanium, as well as composite materials such as plastics.
4g Welding Position
In performing their duties, welders read blueprints and drawings to identify welding measurements and position.
![Welding Welding](/uploads/1/1/8/1/118166847/248512860.jpg)
Their role also involves conducting assessments to determine appropriate welding methods and equipment.
They also set up and install welding components/equipment according to set specifications.
Welders ensure compliance with safety protocols by wearing protective gloves, masks, and boots.
They monitor equipment operation to ensure temperature conditions are optimal.
They also adhere to health/safety guidelines and procedures to ensure a risk-free work environment.
Usually, welders operate manual or semi-automatic welding equipment to join metal parts.
They employ high heat processes such as tungsten inert gas (TIG) welding, metal inert gas (MIG) welding, plasma arc welding, and various other specialized processes in fabricating or repairing metal structures.
They also utilize chipping knives and power saws in cutting metal workpieces.
As part of their work description, welders test and inspect welded surfaces to identify and fix possible flaws.
They utilize braces and clamps in aligning metal components for welding.
They also operate grinders and scrapers to prepare metal surfaces for welding operations.
Welders usually weld components in flat, overhead or vertical positions. They clean metal materials prior to welding to remove rust, grease, scale or other contaminants.
![4g Welding Position 4g Welding Position](/uploads/1/1/8/1/118166847/601939430.jpg)
Preheating workpieces using torches to prepare them for bending or welding is also part of welder description.
The welder job position requires a high school diploma and training as a welding apprentice. Duralast 900.
The major qualities you need to be effective on this job include math skills, physical stamina, and manual dexterity.
Welder Job Description Example/Template
Welders perform various functions, below is an example of the job description, consisting of typical duties, tasks, and responsibilities they are commonly assigned:
- Utilize plasma, gas or electric arc in welding metallic and composite materials together
- Heat and dissolve metal parts to obtain molten substance used in welding or extrusion
- Oversee the installation of tank linings, valves, lead pipes, and floor
- Conduct x-ray, hydrostatic, and tolerance tests on welded parts to verify weld quality and conformance to specification
- Operate manual and semi-automatic welding equipment in vertical, horizontal, or overhead positions
- Use powersaws, chipping knife and hand shears in cutting, beveling, and contouring metal workpieces
- Repair structures by dismantling, reshaping, and reassembling metal components using cutting torches and handtools
- Maintain an up-to-date knowledge of local and international building codes/legal requirements
- Monitor work equipment to ensure usage is within optimum temperature to avoid overheating or expansion
- Prepare metal surfaces by cleaning with chemical solutions and wire brushes to remove impurities such as scale, rust, grease, and moisture
- Design patterns and models for a welding project using specifications contained in a blueprint
- Direct electrodes on or across metal workpieces to melt, bend or straighten them
- Mount and secure workpieces on production equipment using cranes, hoists or banding machines
- Conduct estimates to determine the amount and cost of materials required for construction
- Mix and apply protective or decorative coat on finished products.
2g 3g 4g Welding Positions
Requirements – Skills, Abilities, and Knowledge – for Welder Job
If you are seeking to work as a welder, the following are the necessary requirements you may be asked to meet by most employers to qualify in accessing the role:
- Education and Training: To become a welder, you require a high school diploma and several years of training as a welding apprentice. You are required to pass welding competency tests in order to obtain relevant welding fabricator certification. About 2-6 years of welding experience is also necessary for the welder job
- Math Skill: Welders are able to carry out complex calculations to determine the dimension and configuration of a welding project
- Physical Stamina: They are able to perform welding operations under extreme conditions such as inclement weather and limited workspace
- Manual Dexterity: They are able to operate and utilize a range of power and hand tools in carrying out welding activities
- Pre-employment tests: To be hired for a welding job, or for an apprenticeship position, you may be required to take an assessment test. Learn about job assessment tests for this role and how you can make high scores in them.
Conclusion
Are you hiring for the welder position and need to make a job description for it? If you are, then you can apply the sample work description provided in this post to quickly create a detailed one that can help you get the best candidates for the job.
This post also provides information for individuals interested in working as a welder, to learn more about what the role involves, and so be able to prepare themselves for the career.
This post also provides information for individuals interested in working as a welder, to learn more about what the role involves, and so be able to prepare themselves for the career.
Did you find this post useful in learning about what welders do? Please, share your thought about this article in the comment box below. You may also share the activities you normally perform as a welder if you are one.
You may need to pass a job test to be hired for a position, improve your chances of making high scores today!
Job Assessment Tests: How to Top Your Competition
As part of the hiring process, most applicants that passed the initial Resume/CV screening phase are required to pass an assessment test for the job or apprenticeship position they are applying for.
Arc Welding 4g Position
The goal of this phase is to determine if the candidate has the appropriate set of skills and qualities to excel on the job.
Find out the tests you will be needing to take for the position you are applying for; get lots of success proven Practice materials to prepare with now: Sure way to make high scores in job tests.