The Xiris Blog

Justin Grahn

Recent Posts

Upgrade Your View with a Xiris Weld Camera

Posted by Justin Grahn on Monday, March 20, 2017 @ 09:15 AM

Upgrade Your View!

This isn’t the first time Xiris has run into a duct-taped welding shield and it won’t be the last.  A manufacturing company, welding high quality products on a seamer has recently made some major upgrades.

From this:


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To this:

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What other single upgrade can so easily and cost-effectively increase quality, raise productivity, reduce health and safety risk, and improve working conditions for your operators?

A Xiris Weld Camera can be retrofitted on virtually any seamer in minutes.

Visit our

WELD VIDEO LIBRARY

for dozens of examples of the camera in action. 

For more information on how Xiris Weld Cameras can enhance your weld processes visit Xiris.com or REQUEST A DEMONSTRATON 

Don't miss any of our amazing videos! Sign up to receive the Weld Video of the Month 

Topics: quality control, Xiris, welding, weld safety, productivity tools

Monitoring Welding Processes in Color

Posted by Justin Grahn on Tuesday, September 13, 2016 @ 12:52 PM

In most situations, a high dynamic range (HDR) image that provides a clear view of the weld arc and immediate work environment is enough to provide operators everything they need to control or adjust their welding process.  Typically, such images are provided in monochrome because, in certain circumstances, it provides better image saturation and fidelity. Monochrome images can accentuate the light and shadows of a welding scene, making the texture of the welding surfaces, torch tip, wire and melt pool easier to see.  Images with a wide range of tonal values, such as what might exist in a high dynamic range image of a welding scene, tend to work well in monochrome.  This is especially the case when the tones in the image range all the way from the blackest blacks of the background to the whitest whites of the welding arc, with lots of varying grey tones in between.

However, for some welding situations, color imaging that delivers high dynamic range imaging has particular value.  The presence of color allows the boundary of aspects of the weld process to be easily detected by the operator.  Bright hues that highlight an element, such as the melt pool, shielding gas or torch tip can improve the visibility of that object to the operator.

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Color Image of a Manual TIG Process

Of all the types of welding, perhaps the most suitable for color imaging is GTAW (TIG).  Some of the features that are better seen with color in a TIG process include:

  • Melt Pool: Better edge definition and detection of flow of molten material.
  • Shielding Gas: Operators are able to see if there is any shielding gas present.  Also, each shielding gas mixture typically has its own signature certain color.  If the gas chemistry in the welding environment changes, then so does its color. 
  • Oxidation: Very easy to detect the presence of flames resulting from the burn-off of any oils or impurities.
  • Heat Affected Zone (HAZ): The leading edge of the heat affected zone can be detected in the parent material as it typically colorizes at elevated temperatures.  This can indicate the amount of heat penetration and energy transfer.
  • Temperature Indicator: Operators can clearly see discoloration of metal due to excess heat in the welding process.
  • Torch Tip: Easier to see the definition of the torch tip and cup relative to the weld arc.  Allows the operator to monitor the impurity build up on the torch tip and spatter presence on the cup.

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Narrow Gap TIG Welding – Color Exposes Different Details

Conclusion

Ultimately, the choice of whether to use color or black and white camera technology depends on what feels right for the operator.  Nevertheless, for certain welding operations such as TIG, the use of color imaging can significantly enhance the clarity and detail of the image, thereby improving the operator’s ability to detect even small changes in the weld scene.

For more information on how Xiris Color Weld Cameras can help monitor your weld processes, visit Xiris.com 

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Topics: quality control, Xiris, welding, High Dynamic Range, TIG, productivity tools, color imaging

Additive Manufacturing Research and Development Made Easier

Posted by Justin Grahn on Wednesday, May 25, 2016 @ 11:38 AM

Additive Manufacturing refers to a process whereby 3D design data is used to build up a component by depositing successive layers of material to create the shape required.  It is also referred to as "3D printing" and can be used to create almost any shape or geometry that is generated from a 3D CAD model.  It is called Additive Manufacturing because material is added together to form a part, distinguished from conventional manufacturing where material is removed to form a part.  

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To form a part, layers of specialized powder or special filament wire can be melted together using a Laser or weld head under a motion system to create the shape required.  This is a fairly new field that is attracting lots of Research and Development to create better processes, powder and wire materials, and bonding techniques.  However, the development process typically requires long run times of the additive manufacturing equipment that is very labor intensive to watch the entire process in real time.

Instead, Xiris Weld Cameras can be used to record the process to produce crisp and clear images of the weld head, laser spot, melt pool and weld bead.  The result is a video of the process in stunning high resolution and clarity, at rates that can exceed 200 frames/sec.  This can allow engineers and scientists to monitor the process live and stop right when an error occurs.  Or, the recorded video can then be played back at a higher speed to allow engineers and scientists to review the process from start to finish and carefully review the events of greatest interest at a lower speed, as required.  This allows the R&D team to focus on the time of defects and errors, by finding out exactly what went wrong with the process by analyzing the recorded video at the time of interest.

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Conclusion

The development effort to improve an additive manufacturing process can be long and tedious.  Using a Weld camera to monitor the process can both help to reduce the labor required to improve the process but also provide better documentation and highlighting of the process variations as they occur.

For more information on how Xiris Weld Cameras can help with your Additive Manfacturing applications, visit Xiris.com

Topics: weld video, Xiris, welding, High Dynamic Range, R&D, LAM, additive manufacturing

Using a Camera for Welding R&D, Part 2: Filler Wire

Posted by Justin Grahn on Wednesday, September 09, 2015 @ 03:09 PM

Most non-Autogenous welding processes use an external filler wire that is added to the process to help fill a large weld gap or provide a wide cladding area. The type of wire, size, metallurgical properties, type of coring, feed speed and angle are just some of the process parameters fabricators want to monitor to ensure their welding process is proven. But how to do it? A number of welding researchers have turned to the Xiris XVC-1000 Weld camera to get better images of their welding process to understand exactly what is happening.

For example, using a Xiris XVC-1000 Weld camera can help researchers monitor key features of any filler wire feeding process:

 

1) Analyze how well the filler wire withstands its feeding process through a variety of welding processes such as high speed travel and side to side weaving processes:Sept_9_High_Speed_wire_feed_causes_an_inconsistent_start_throwing_pieces_of_wire_1.jpg

High speed wire feed causes an inconsistent start, throwing pieces of wire

 

2) Monitor how well the wire is positioned relative to the weld:

Wire feed walking off center

 

 

3) Monitor how well the wire is being fed and if there is any damage to the wire during feeding

Wire damage is clearly evident

 

 

4) Monitor the timing of the wire feeding. This is particularly important during welds of short duration such as laser welding where it is important to analyze the timing of the wire delivery relative to the weld process. In the example shown below, a frame-by-frame analysis was done to observe the timing and interactions between the laser, wire feed, and robot positioning:

The wire touches the plate early

 

The laser turns on at the proper time; the wire feed has not yet started

 

The wire feed finally catches up

 

The wire feed turns off and the head begins to rise with the laser still on

 

The above examples are just some of the areas where a weld camera can be used to help with the process and product development of what type of wire and what parameters to use for specific types of non-autogenous welding.

For more information on how Xiris Weld Cameras can augment your R&D processes, visit Xiris.com 

Sign up to receive our Weld Video of the Month

Topics: weld camera, XVC Weld Camera, R&D

Using a Camera for Welding R&D, Part 1: Powder Spray

Posted by Justin Grahn on Friday, August 21, 2015 @ 01:08 PM

Cladding processes that use powder spray incorporate a variety of technologies such as powder welding, plasma spray, PTA (plasma transferred arc) and laser cladding.  These processes have similar elements where a plasma or laser arc provides the heat source one or more nozzles around the arc that dispense the powder.

Using a Xiris Weld camera can help researchers monitor two key features of any powder spray operation:

  • Monitor the amount of powder that is wasted once it has left the nozzle(s), i.e. how much powder bounces off the weld puddle or work piece without becoming adhered; and
  • Monitor the distribution and flow of powder, during process, to ensure an even & consistent distribution.

Ensure your R&D process is providing you the most information by adding a weld camera!

 Laser Powder Spray Process Development



 

Would you like to see what the Xiris XVC-1000 has to offer?  Subscribe to the Weld Video of the Month Club to receive exclusive video content recorded by our own XVC-1000

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For more information on how Xiris Weld Cameras can help monitor your weld processes, visit Xiris.com 

Topics: weld camera, XVC Weld Camera, Powder Spray, R&D

Improving Tank Manufacturing Safety with Cameras

Posted by Justin Grahn on Tuesday, July 14, 2015 @ 02:00 PM

Large tank manufacturing can be a difficult process.  Welding together large pieces of formed metal to make round tanks and pressure vessels can be technically challenging.  Typically, manufacturers will implement automatic welding equipment that needs to be constantly monitored in order to ensure that it is operating as optimally as possible.  As automatic as most of the machines are on the market today, there still is a need for operators to monitor the weld process for a number of issues, namely:

  • Adjusting the rotational speed of the tank components being welded;
  • Adjusting the feed speed of the wire as it goes to the weld head;
  • Adjusting the weld head for seam alignment because the tank metal components are not perfectly round.

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Automatic Tank Fabrication

Often, operators are used to physically monitor the welding process directly at the weld site.  This can be a significant safety hazard, especially when using large column and boom welding equipment inside the tanks as the operators can be confined to tight spaces when monitoring the weld and be exposed to multiple toxic fumes.  A simple solution can be implemented to solve this problem: a Xiris XVC Weld Camera. This camera can be mounted on to the weld head allowing the operator can to monitor the welding process remotely, from a safe location outside the tank.

 

This Weld Camera solution was recently installed at a large tank manufacturer.  Prior to implementing the camera, the manufacturer had their operators monitor the weld process directly inside the tank.  Forced to lie flat beside the welding boom to be able to see the welding process as the tank rotated under them, the operators could potentially slip or fall and hit the boom, hot weld seam or bead.  In addition, the operators had to wear extensive personal protection equipment (PPE) and a heavy duty ventilation system had to be installed in order to remove smoke and fumes from the weld process and bring fresh air into the tank in order to protect staff from exposure.  By installing the Weld camera, the manufacturer avoided health and safety issues and made the work of welding a much more comfortable and appealing experience for the operators.

 

The Result

The customer decided to implement a Xiris XVC Weld Camera as part of their overall automation equipment upgrade.  In the words of one of their technicians, the Xiris camera was “the most important part of the upgrade” as it allowed, for the first time, the operator to monitor the welding process remotely.  Now, ventilation equipment is no longer required and the operator can sit in a chair outside of the tank, wear no protective equipment or ventilation equipment, and view a monitor, which  provides better visibility of the weld; allowing for better   control of the weld process.


Would you like to see what the Xiris XVC-1000 has to offer?  Subscribe to the Weld Video of the Month Club to receive exclusive video content recorded by our own XVC-1000

Subscribe Now

For more information on how Xiris Weld Cameras can help monitor your weld processes, visit Xiris.com 

Topics: weld camera, XVC Weld Camera, Tank Manufacturing