Tools/TIG/induction: Difference between revisions
imported>Stever (Don't have the large bottle anymore) |
imported>Stever |
||
Line 341: | Line 341: | ||
== TIG welder induction (TIG Mode) Level 2 == |
== TIG welder induction (TIG Mode) Level 2 == |
||
Level 2 TIG induction is intended to allow people to convert from working on steel to more complex tasks |
Level 2 TIG induction is intended to allow people to convert from working on steel to more complex tasks. You must have completed level 1 induction and practiced it to a reasonable level before undertaking level 2. There is a charge of £30 to cover materials, machine charges and trainer time for Level-2 induction, at least a week's notice is required in order to get the necessary materials and the induction is anticipated to take 2-3 hours. |
||
* Working on and welding aluminium, magnesium, silicon alloys |
* Working on and welding aluminium, magnesium, silicon alloys |
||
Line 366: | Line 366: | ||
* When and how to use back-purge (we don't have any fittings for it) |
* When and how to use back-purge (we don't have any fittings for it) |
||
You must have completed level 1 induction and practiced it to a reasonable level before undertaking level 2. There is a charge of £30 to cover materials, machine charges and trainer time for Level-2 induction, at least a week's notice is required in order to get the necessary materials and the induction is anticipated to take 2-3 hours. |
|||
[[Category:inductions]] |
[[Category:inductions]] |
Revision as of 11:14, 30 June 2021
Some of the tools at the Hackspace are potentially hazardous to use, for these tools members are required to have an induction before they can use them. Inductions provide the most basic information on how to safely and effectively use the simpler functions of the tools, we appreciate that some members may have professional experience on some of these tools and in this case please tell your induction provider and the induction may be very reduced and just cover any risks or procedures specific to rLab. Some tools have multiple levels of induction in order to cover more advanced uses of that tool without making the basic induction take too long, higher induction levels will introduce some of the more advanced features of the tools but as with all inductions are only intended to provide basic information on the capabilities of the tools and how to use them safely. Some members of rLab may be willing to offer more detailed tuition beyond basic induction level or offer guided practice sessions in exchange for beer money or assistance on their own projects.
For all tools you are only required to take level-1 induction before use, after that you may perform any task that you feel confident you can do safely, higher levels of induction may be useful to you in performing more advanced operations but are not required before doing tasks covered in them so long as you're confident of your ability to handle those tasks without risk to yourself, others, or the tool.
PLEASE NOTE : All induction providers are volunteers who are providing inductions to the best of their ability but are NOT qualified instructors. Inductions are provided on a best-effort basis but you and you alone are responsible for your safety while using the tools and for satisfying yourself that you can operate the tools safely. There are professional training courses available from various providers in Reading and the surrounding area if you feel they are appropriate for the level of work you intend to undertake. Reading these notes is NOT a substitute for an in-person induction.
Note for wiki editors : Please do not edit induction pages unless you are one of of the people that gives that induction
TIG welder induction (TIG Mode) Level 1
Level 1 induction in intended to cover the basics of how to use the TIG welder, it covers basic safety information and how to use the welder effectively on mild and stainless steel in positions 1G and 2G/F. It is strongly recommended that people undertake MIG induction and practice it thoroughly before attempting TIG welding, that said you can start welding straight away with TIG but it's likely to take considerably longer to develop the required skill to use it effectively. People undertaking TIG induction need to have overalls or other non-flammable clothing that covers all exposed skin except for head and hands. Wear stout shoes or boots, no open shoes allowed. If you have any metal you'd like to practice on then please bring it with you so long as it's plain steel with no galvanized coating or paint but if you don't have any then we usually have suitable scrap around to practice on. There's no charge specifically for the level 1 induction but normal welder usage charges apply, you should expect it to cost around £10 for the induction and a bit more if you spend some time practicing afterwards which is strongly recommended. This induction may takes up to 3 hours depending on skill. Please remember that what you might have seen on youtube/instagram is people showing off their very best welds that may have taken years of practice and multiple attempts to achieve, you will NOT be getting results like that after just an induction. The goal for induction is to be able to use the TIG welding without being a danger to yourself or others, it's not even to achieve structurally sound welds, TIG welding is a high-skilled process and it takes a minimum of hundreds of hours of practice to get photograph-worthy results like that.
For people who've not welded before | For people who can already MIG weld | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For people who've not welded before the full technique and safety briefing is required
|
For people who can already MIG/MMA weld this can be shorter
|
Topic | Detailed contents | Rationale | ||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
How it works |
|
Basic process details | ||||||||||||||||||||||||||||||
Machine Description |
|
Covering what all the parts are called and do | ||||||||||||||||||||||||||||||
Preparing to weld (continued) |
|
Proper preparation is necessary for good welds | ||||||||||||||||||||||||||||||
Setting up the welder |
Start at the tip of the torch and work back....
|
Suitable setup and settings for executing the weld | ||||||||||||||||||||||||||||||
Configuring the welder |
Welder Settings
|
How to set the arc parameters | ||||||||||||||||||||||||||||||
PPE safety |
|
Using the right PPE for TIG welding | ||||||||||||||||||||||||||||||
How to actually execute a weld |
|
Cover the basic technique of establishing and moving a weld bead | ||||||||||||||||||||||||||||||
Problems |
These are some of the problems you might find when welding [Deliberately set up and demonstrate each of these faults]
|
Recognising faults and knowing how to fix them | ||||||||||||||||||||||||||||||
Practising a steady bead | Inductee practices moving the puddle on flat stock till competent (may take a lot of time and re-grinding) | Getting the basics right | ||||||||||||||||||||||||||||||
Laying a bead using filler |
[Demonstrate laying a bead along a bit of thick material] [Demonstrate too little and too much filler] [Inductee practices laying a filler bead] |
Laying a bead while using filler | ||||||||||||||||||||||||||||||
Butt joints |
[Coupons used must be 2mm thick steel, thinner makes this too hard for inductions]
[Demonstration and practice till successful] |
Executing the most basic weld | ||||||||||||||||||||||||||||||
Fillet joints |
[Coupons used must be 2mm thick steel, thinner makes this too hard for inductions]
[Demonstration and practice till successful] |
Second most common weld type | ||||||||||||||||||||||||||||||
Lap joint |
[Talk about but don't demonstrate this type]
|
Next joint type | ||||||||||||||||||||||||||||||
Shutting down and cleaning up |
|
Clean up after yourself and pay what you owe! | ||||||||||||||||||||||||||||||
Final thoughts |
|
Closing comments |
TIG welder induction (TIG Mode) Level 2
Level 2 TIG induction is intended to allow people to convert from working on steel to more complex tasks. You must have completed level 1 induction and practiced it to a reasonable level before undertaking level 2. There is a charge of £30 to cover materials, machine charges and trainer time for Level-2 induction, at least a week's notice is required in order to get the necessary materials and the induction is anticipated to take 2-3 hours.
- Working on and welding aluminium, magnesium, silicon alloys
- Using AC rather than DC and why
- Using wave-balance
- Different electrode types
- Reduced current handling on AC
- Connecting the foot peddle
- Must be used on 2T mode
- How to set the current range on it
- Practice using it to ramp up and down current
- Balling the tip, not necessary but helpful
- Letting the puddle form then moving
- The puddle is a lot more fluid than on steel
- Care with how you use the filler rod
- Backing down current near edges and as material heats up
- Anti-cratering at the end
- Using AC rather than DC and why
- Further develop the skills required for more challenging welding applications such as position 3&4 welds
- TIG brazing
- Use of 4T mode
- Using pulse mode
- Using gas lens system
- Maintaining & Cleaning the torch
- When and how to use back-purge (we don't have any fittings for it)