Difference between revisions of "Spot Welder"

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  |Has name={{PAGENAME}}
 
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|Has make=Miller
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|Has model=LMSW-52
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|Has serial number=MJ328801N
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|Has life expectancy=
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  |Has icon=File: Spot_welderIcon.png
 
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  |Has certification=https://georgefox.instructure.com/courses/1281
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|Has make=LPKF
 
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|Has model=ProtoFlow S N2
 
 
  |Has group=Circuit Board Design
 
  |Has group=Circuit Board Design
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  |Has ace=Chandler Wann;cwann18@georgefox.edu
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  |Has ace=Needed;Makerhub@georgefox.edu
 
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Resistance spot welding is a process in which contacting metal surface points are joined by the heat obtained from resistance to electric current. The Miller LMSW-52 Air-Cooled Spot Welder is a lightweight unit that is portable, easy to operate and excellent for welding mild, galvanized or stainless materials.<br />
 
  
 
__TOC__
 
__TOC__
 +
 +
==Safety First==
 +
[[File:Safety First HD2.png|left|150px]]
 +
* Wear gloves and welding helmet.
 +
* Don't have bare skin exposed.
 +
* Don't weld in wet gear or standing water.
 +
* Welded material will be hot.
 +
 +
  
  
 
==Description==
 
==Description==
 +
Resistance spot welding is a process in which contacting metal surface points are joined by the heat obtained from resistance to electric current. The Miller LMSW-52 Air-Cooled Spot Welder is a lightweight unit that is portable, easy to operate and excellent for welding mild, galvanized or stainless sheet materials.<br />
 
* LMSW-52 spot welder manual [https://www.millerwelds.com/-/media/e50208051cc3492c9016790b303abf4f.pdf]
 
* LMSW-52 spot welder manual [https://www.millerwelds.com/-/media/e50208051cc3492c9016790b303abf4f.pdf]
  
  
−
Here is an example of TIG welding and some good basic information.
+
Here is an example of spot welding and some good basic information.
−
{{#evu:https://www.youtube.com/watch?v=IfJG4cMhIOc&list=PLhEXQudI6XCS3Rev1aaEwy0n4-68YdNTe&index=14&t=0s}}
+
{{#evu:https://www.youtube.com/watch?v=6pVsZrDf-R8}}
  
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{{#evu:https://www.youtube.com/watch?list=RDCMUCTRI9Us8zLiywY29vsW3kKg&v=tNYmo2_DI6c&feature=emb_rel_end}}
+
==Documentation==
  
−
==Documentation==
+
[[Media:Spot_Welder_Manual.pdf|Spot Welder User Manual]]
  
−
* [https://www.millerwelds.com/files/owners-manuals/O359H_MIL.pdf Owner's Manual]
 
 
====Terminology====
 
====Terminology====
  
−
*Squarewave technology was developed by Miller Electric in 1976 to improve your weld quality and make TIG (tungsten inert gas) welding easier. Miller Squarewave technology provides arc stability when welding aluminum, prevents arc rectification and eliminates tungsten erosion.
+
*Tongs-
−
*CFH-Cubic Feet Per Hour
 
−
 
 
−
*Balance control-The balance control is adjustable to provide additional oxide removal (more cleaning) or less cleaning based on the condition of the material being welded.
 
−
 
 
−
*Syncro Start-This allows the choice of Soft, Standard or Hot TIG starts based on the application, lead lengths and tungsten size.
 
−
 
 
−
*Digital welding meters-Display both amperage and voltage for viewing of the actual and preset values for greater accuracy and repeatability in your welding procedure.
 
−
 
 
−
*Last procedure recall-Simplifies changing your Syncrowave back and forth from aluminum TIG to stainless TIG to Stick welding. One switch makes all the control panel changes.
 
−
 
 
−
*Adaptive Hot Start-Stick welding features such as Adaptive Hot Start™ provide good arc strikes without sticking. Once welding, the DIG control makes dynamic adjustments to the welder to ensure smooth E7018 and deep penetration E6010.
 
  
 
==Training==
 
==Training==
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====Operation====
 
====Operation====
 
Here are some general setup rules of thumb:   
 
Here are some general setup rules of thumb:   
−
*The CFH gas setting should be roughly 2x the weld cup size.  If you were to use a #7 cup the gas flow should be set to 14 CFH.
+
*The maximum weld capacity is 2 sheets of 16 gauge material.
−
*The tungsten stick-out from the cup should be no more than the cup diameter.  Using a #7 cup would allow for a maximum tungsten stick-out of 7/16"
 
  
 
====Demonstration====
 
====Demonstration====
  
−
The demonstration consists of two parts.  For the first part you will need to setup the welder and safely attempt to weld a bead.  The second part will require you to show knowledge of safely using the grinder and successfully grind a point on a tungsten rod.
+
For the demonstration you will need to perform a spot weld using two pieces of scrap material.
  
 
====General Procedure====
 
====General Procedure====
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# Turn on the spot welder
 
# Turn on the spot welder
 
# Place the material being welded between the clamps.
 
# Place the material being welded between the clamps.
−
# Clamp down on the two pieces of material for no more than 5 seconds.
+
# Clamp down on the two pieces of material for approximately 2 seconds. The time required to weld may vary slightly depending on the material and thickness.
 
# Grab workpiece with a set of pliers, and open the clamp.
 
# Grab workpiece with a set of pliers, and open the clamp.
−
<br \><br \><br \><br \><br \>
 
 
<references />
 
<references />
−
 
−
 
−
 
−
==Safety==
 
−
# Don't exceed gas pressure past specified value
 
−
# Don't weld with gas off
 
−
# Always use a welding helmet and proper PPE 
 
−
# Don't weld in wet gear or standing water
 
−
# Don't unscrew regulator adjusting screw all the way out
 
−
# Make sure ground clamp is connected to work
 
  
 
==Certification==
 
==Certification==
 +
Complete the <strong>Welding Shop - {{PAGENAME}} Module</strong> at the link below to gain access to the {{PAGENAME}}. The Maker Hub Canvas course pertains to all facilities and equipment contained in the Maker Hub; simply complete the quizzes for the facilities/equipment you wish to use in the Maker Hub. Please email <span style="color:blue">makerhub@georgefox.edu</span> if you have any questions.
  
−
[https://foxtale.georgefox.edu/moodle/course/view.php?id=31322 Foxtale Course]
+
[https://georgefox.instructure.com/enroll/GH36RT Maker Hub Canvas Course]
  
 
==Troubleshooting==
 
==Troubleshooting==
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====General maintenance====
 
====General maintenance====
  
−
The welding torch and cables should be inspected on a regular basis. Look for any signs of cracking or cuts in the cables.
+
The welding tips should be inspected and cleaned as needed.
  
 
====Specific Maintenance Tasks====
 
====Specific Maintenance Tasks====
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!Done By
 
!Done By
 
|-
 
|-
−
|Check Argon Pressure
+
|xxx
−
|Before Use
+
|xxx
 
|Student/Tech
 
|Student/Tech
 
|-
 
|-
−
|Check Coolant Flow
+
|xxxx
−
|Before Use
+
|xxxx
 
|Student/Tech
 
|Student/Tech
 
|-
 
|-
−
|Inspect collet & Cup
+
|xxxx
−
|Before Use
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|xxxx
 
|Student/Tech
 
|Student/Tech
 
|}
 
|}

Latest revision as of 13:17, 19 November 2024

Spot.jpg
Reflow Oven Icon

Make: Miller

Model: LMSW-52

Serial Number: MJ328801N

Ace: Needed (Makerhub@georgefox.edu).

Location: Welding Shop


Safety First

Safety First HD2.png
  • Wear gloves and welding helmet.
  • Don't have bare skin exposed.
  • Don't weld in wet gear or standing water.
  • Welded material will be hot.



Description

Resistance spot welding is a process in which contacting metal surface points are joined by the heat obtained from resistance to electric current. The Miller LMSW-52 Air-Cooled Spot Welder is a lightweight unit that is portable, easy to operate and excellent for welding mild, galvanized or stainless sheet materials.

  • LMSW-52 spot welder manual [1]


Here is an example of spot welding and some good basic information.

Documentation

Spot Welder User Manual

Terminology

  • Tongs-

Training

Operation

Here are some general setup rules of thumb:

  • The maximum weld capacity is 2 sheets of 16 gauge material.

Demonstration

For the demonstration you will need to perform a spot weld using two pieces of scrap material.

General Procedure

  1. Ensure the material being welded should be clear of any oil or dust
  2. Turn on the spot welder
  3. Place the material being welded between the clamps.
  4. Clamp down on the two pieces of material for approximately 2 seconds. The time required to weld may vary slightly depending on the material and thickness.
  5. Grab workpiece with a set of pliers, and open the clamp.


Certification

Complete the Welding Shop - Spot Welder Module at the link below to gain access to the Spot Welder. The Maker Hub Canvas course pertains to all facilities and equipment contained in the Maker Hub; simply complete the quizzes for the facilities/equipment you wish to use in the Maker Hub. Please email makerhub@georgefox.edu if you have any questions.

Maker Hub Canvas Course

Troubleshooting

Maintenance

General maintenance

The welding tips should be inspected and cleaned as needed.

Specific Maintenance Tasks

Maintenance Procedure Frequency Done By
xxx xxx Student/Tech
xxxx xxxx Student/Tech
xxxx xxxx Student/Tech
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