ROBOTIC MIG / MAG WELDING TECHNOLOGIES
Robotic Welding Systems Which Technologies Contain
- Arm Type 6 Axis (6DOF) Robots
- Smart Robot Accessories
- Gantry Type Robots (Column, Pillar, Gantry, Crane Type)
- Slider Robot Axes
- Robot Positioners
- Process (Welding) Machine Technologies
- Side Process Equipment
- Smart Process Sensors and Machine Vision Technologies
- Monitoring and Data Collection Hardware and Software
- Robotic Based Process Software
- Offline Programming Software and Compatible Technologies
- Fixture and / or Fixing Apparatus
- Robotic Tool Changers
- Security systems
- Integrated Industrial Fume Extraction and Filtering Systems
- Digital Transformation Technologies
- Related Statistics
About MIG / MAG (Gas) Welding Technique
Gas Welding method is called by different names in various countries. Gas welding in the United States; “Gas Metal Arc Welding” (GMAW), which means “gas metal arc welding”, is called MIG / MAG Welding in our country and Europe.
The method is named as MIG (Metal Inert Gas) welding due to the use of melting metal electrodes and inert gas. In the method, developments such as working with low current densities and pulsed current, application to different metals and using active gases (CO2) and gas mixtures as shielding gas have occurred. These developments have led to the method using active shielding gas to be called MAG (Metal Active Gas) welding. It is mentioned in Turkish literature as “Gas Welding / Gas Arc Welding or MIG / MAG Welding with Melting Electrode (with Wire)”.
In gas welding, the heat required for welding is generated through the resistance created by the welding current passing through the wire. When the welding wire touches the part, it melts with high temperature and metal transfer and accumulation occurs through the arc created between the continuously fed welding wire and the workpiece. The region where the welding arc takes place (welding bath) should not be exposed to the disturbing and negative effects of the air in the natural environment. The use of a protective gas is provided for this. In order to protect the environment in which the arc occurs against reactive oxygen, the said shielding gas is also integrated into the system with a special installation and mechanization. Shielding gas flows from the first exit point to the welding torch and from the torch to the gas nozzle. This gas mixes with oxygen during welding and thus prevents oxidation in the arc environment and weld pool.
The “MIG / MAG” or “Gas Arc Welding” method is currently the most widely used welding method, especially providing high welding speeds and build-up. It can be used manually, mechanized and with robot support. With the development of industrial robot technology and systems, the welded production process known as the “MIG / MAG” or “Gas Arc Welding” method has quickly found its place in the field of robotics. It maintains its feature of being a flawless and efficient production technology with new methods, hardware and software technologies specially developed every day.
İlgili İstatistik
In the Industrial Robot Market in the world, 380,550 robots were sold and integrated in 2017. Nearly 22% of the total sales, 81,800 units are for welding applications.
- Robotics Welding
- Other Robotics
MIG / MAG Tech. Advantages
- It can be used for welding all metals and alloys.
- It can be welded in any position.
- Seamless welding is possible with a long wire electrode.
- Interpass cleaning is easy.
- More effective population can be achieved.
- Its application can be learned easily.
- High welding speed and accumulation of material are possible.
- It is very economical due to the low cost of wire material.
- Welding arc is extremely easy to ignite.
- It is very suitable for robot-assisted welding applications.
- It is easy to mobilize.
- It is possible to obtain burr-free welding with Pulse and Synergic versions.
Applicable Materials
- Carbon steels
- Stainless steels
- Aluminum and its alloys
- Nickel and its alloys, copper and alloys
Advantages of "INTECRO" Robotic MIG / MAG Systems
- The end of capability is your imagination.
- Tailor-made personalized works are just for it. - 1
- Tailor-made personalized works are just for it. - 2
- Tailor-made personalized works are just for it. - 3
- It is as easy to use as your mobile phone.
- It does an excellent job in meeting process standards.
- Does not object to flexible working hours and procedures
- Reporting is strong, provides advanced traceability
- Provides 24/7 trouble-free performance for 10 years
- If suitable conditions are provided, it is very efficient (85%).
- Provides sustainability forever, not until the Sunday
- The quality and reproducibility of robotic mig / mag or gas welding systems is high.
- They can work uninterruptedly with high welding speed and perfect welding quality in welding processes of heavy workpieces.
- They can work comfortably in high, vertical and non-planar places etc. which are not ergonomic in terms of access to the welding point on the workpiece and where the operators will have difficulty in working.
- In terms of access to the welding point in the workpiece, they can work comfortably by entering between narrow, transitive roofs that are too narrow for people to enter.
- The repeatability of the robotic welding process is precise and high (0.05mm). Although the repeatability of humans cannot be measured, even a good welding master can only work with an accuracy of 5-10mm.
- It is only possible to apply the welding parameters (WPS, PQR) with high repeatability and accuracy on workpieces with high repeatability and accuracy, only with robots.
- Contrary to what is known, robots do not only work in welding single type products or in mass production-oriented welded manufacturing processes, they can be easily programmed and used in continuously variable workpieces.
- In welding operations of well-fixtured workpieces, once programmed, robots can perform gas welding operations of the same workpieces on the same fixtures repeatedly without the need for any special sensor and sensor technology.
- Welding Robots can also be used efficiently in gas welding operations of relatively bulky workpieces that are roofed without fixtures. Gauges are used during roofing for metal workpieces whose roof is provided with the centering technique. Even if the gauge is used, in practice, during the roofing of the work pieces, the sub-parts that make up the whole may have been processed outside the tolerances in the pre-welding preparation process (cutting, bending, etc.). During the roofing of the workpiece, the pre-weld dimensional defect seen in the lower parts can also be added to factors such as position shifting and deviation at certain tolerances during the roofing of the lower parts, which are accepted as operational normality. (In industrial applications, dimensional and positioning errors of 1-5 mm are observed.)
- In such cases, the robot provides the welding process with a single program on the ideal workpiece that is fixed in every direction, while the workpieces that may have deviations and dimensional shifts in many directions are re-written before each welding process or recorded by teaching the program in the robot. There is an erroneous opinion that it will be necessary to revise the points.
- On the other hand, it is possible to make mass production or contract / personalized production in the view of the relevant workpiece by doing “Robot Position Teaching” and “Robot Programming” for the workpieces with tailstock and roof without using fixtures.
- For this, “Touch Sense” technology is used, which works integrated with the robot without making any changes in the program and helps detect position deviations in the workpiece. The robot, whose program is ready before, automatically corrects its current program by analyzing how much the welding trajectory has deviated on the workpiece with the spot and roof and how much the welding starting positions have changed before starting the welding process.
- In addition, during gas welding, workpieces are exposed to heat from the source. In this case, changes in the robot trajectories are observed as a real-time situation during the welding process of the workpiece.
- Robots detect changing welding trajectories with intelligent sensors and software such as “Laser Seam Finding / Tracking”, Arc Tracking Software (Comarc, ArcSense), and automatically determine and apply the changes to be made in the program.
- For robotic MIG / MAG systems; It is possible to set numerous intelligent and personalized processes with numerous technologies such as intelligent sensors, mobile-based applications, Augmented Reality, IoT and Machine Learning (Artificial Intelligence).
- Robots can interact with their environment in real time at high speeds of milliseconds. In this way, it can be assigned to perform different tasks based on variable algorithms under instant interaction and, if necessary, the process can be mobilized in a wide spectrum such as changing the tool, relocating.
- One setting is sufficient for programming the robots.
- Robots can be programmed directly on the workpiece by position teaching via the Operator Hand Terminal (Teach Pendant).
- Thanks to the Hand Terminal (Teach Pendant) specially designed for robot programming, by touching certain areas on the touch screen, programming can be done as easily as typing a message using a touch screen mobile phone.
- Robots can be programmed in environments known as “Offline Programming (OLP) Software” with a more advanced infrastructure. For the welding process to be performed by the robot, programming is made on the 3D cad (STEP, IGES etc.) data of the work part in the OLP software in the PC environment. In this way, all robot movements, process cycle, robot sensor and smart technologies are configured in the PC environment, and the program of the robot is created in a very short time, more detailed and analytically than the conventional programming performed over the Hand Terminal.
- In robotic MIG / MAG welding, it is much easier and possible to perform product and process verification in accordance with the quality expectation, UT, RT and destructive inspection tests in the welded workpieces compared to conventional methods.
- Compared to manual welding, parameter sets such as WPS, PQR are established with absolute success in robotic systems.
- Robotic welding systems are far superior to conventional means for matters such as ideal seam thickness, penetration, pore removal, microstructure success and cosmetic excellence.
- Robots can perform 3 shifts of gas welding process for hours and non-stop.
- Robots can work for 80,000 – 100,000 hours without any error within the basic maintenance operations. That’s about 12,500 shifts.
I am text block. Click edit button to change this text. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.
- Robotlar yorulmazlar ve sosyolojik varlıklar değildirler. Bakımları yapıldığı sürece 7/24 ve yıllarca hizmet sağlarlar.
- Tüm bakımları gerçekleşirse bir kaynak robotunun servis ömrü 9-10 yıldan fazladır. Bir başka ifade ile robotlar yüz binlerce saat çalışma ömrüne sahiptirler.
I am text block. Click edit button to change this text. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.
I am text block. Click edit button to change this text. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.
What Components Is A Robotic Welding System Made Of?
A Robotic MIG / MAG System, in other words, Robotic Gas Welding System, basically consists of components numbered from 1 to 17. Each of these components is explained in detail in the tabs below.
In a gas metal arc welding system, the “power source” is the heart of the system. In the welding torch connected to the robot, it provides the necessary power for the wire to become melted. Thus, metal parts are welded to be joined together.
The operator sets, saves, monitors and changes the required welding parameters through this interface whenever they want. On the latest Fronius tps / i welding machines, this interface has a digital touchscreen display, is robust and functional. From this interface, it is possible to control all variables (robot zigzag parameters, robot speed, etc.) that affect robotic welding performance and quality.
It is a high speed universal (EtherCAT etc.) communication infrastructure that enables the communication between the Control System of the Robot and the Power and Control Unit of the Welding Machine. When this special communication infrastructure is not available; While the robot is an empty manipulator without a process tool, the welding machine is a manual machine that allows welding only by hand. Thanks to this communication infrastructure, the robot and welding machine can operate as a single system with plug-and-play convenience. In both elements, all functions are transformed into a single body with unlimited and trouble-free “robotic welding” features and characteristics. With this universal communication structure, all brand robots can communicate with all brand welding machines.
In welding processes above 200A, a water-cooled welding system has become a more preferred option. Air-cooled systems are generally preferred for standard welding processes below 200A.
However, considering the torch mechanization in the system, the life of the whole installation and hose packages, as well as the consumption consumption and welding quality, water-cooled systems seem advantageous in the long term. For water cooling, the waterline is installed as a separate closed loop line in the hose package of the welding system and runs up to the torch attached to the final flange of the robot and capillary cools all elements of the torch mechanization
Our solutions include Wire Feeding Units in 3 different configurations. 5A – Wire Feed Unit Mounted On Robot 4th Axis Back. 5B- Wire Feed Unit Mounted on Robot 3rd Arm. 5C- Wire Feed Unit Mounted on Wire Bar. The secret of flawless, uninterrupted, trouble-free welding and creating customers who do not need service with years of experience; in detailed configuration, characteristic accuracy and process fineness. Therefore, wire feeding units are offered in 3 different configurations and types depending on the application. The Wire Feed Unit feeds the welding wire to the torch by pulling the wire from the drum or coil package wire package for welding and ensuring correct force controls. Requires reel adjustment or change according to the diameter of the welding wire. It has a characteristic suitable for the voltage and current capacity of the power supply. It automatically adapts to the speed in variable time and feeds the wire. It contains an accelerated force sensor and a controller, thus preventing ruptures. It provides powerfully real-time pushing of the wire to the torch according to the specified characteristic. Below is a description of the 3 different wire feed combinations.
A – PowerDrive System. Only one wire feeder unit called WF 25i RD is used. This unit is placed directly behind the robot, providing a safe, strong and stable wire feed quality. This dynamic wire transmission enables the PMC Mix Drive process, which creates highlights, especially in the aluminum field.
B – PushPull System. It is equipped with two perfectly synchronized wirefeeders that provide the highest precision wire feeding. It is a meticulous wire feed set for high process stability, especially for long wire feeds and soft filler materials (aluminum etc.). No breaks, blockages occur and provide uninterrupted comfort of doing business.
C – Push System. It is equipped with two perfectly synchronized wirefeeders that provide the highest precision wire feeding. It is a meticulous set of wire feeds for high process stability, especially for long wire feeds and soft filler materials (aluminum etc.). No breaks, blockages occur and provide uninterrupted comfort of doing business.
It mounts the Wire Feed Unit safely to the robot and provides insulation.
The hose package contains the communication bus for the wire feeder, the positive or negative supply for the self-shielded wire, the shielding gas hose and the water / air cooler lines.
During the use of the robot, it disconnects the torch mechanically when the torch connected to the robot hits something, it prevents the torch from being warped, damaged, losing its direction and plane and breaking. It also stops the robot at high speeds.
It mounts the Wire Feed Unit safely to the robot and provides insulation.
The data, air, gas, water and wire line, each isolated from each other, are combined in a single hose set and goes directly from the wire feeder to the torch. When it reaches the torch, all lines are combined with the interfaces in the separate torch and perfect integration is achieved.
It is the most important part defining the torch for the welding process.
Welding wires are packaged by the manufacturers in the form of spools or drums. The spool type welding wire supplies are placed directly in this chamber and the end of the welding wire is attached to the wire feeder.
It is the welding wire pipe installed between the Spool Type Welding Wire Hopper and the Wire Feed Unit and acts as a safe physical channel that enables the wire to be transferred to the wire drive.
It consists of wire cutting, Mechanical Torch Cleaning (2 separate types, inside and outside nozzle) and Spraying System. It is the complete solution for automatic maintenance of the torch. Provides precise and effective clean for almost all robot welding torches. In the first stage, the robot is automatically positioned on the wire cutting unit, the robot automatically drives a certain amount of wire. Since the direction of the welding wire may be distorted and clumping may have occurred at the end, the welding wire is cut at one point at the end of the robot and the negative aspects of the wire are eliminated. In the 2nd stage, the robot is automatically positioned in the mechanical torch cleaning unit. The unit grasps the torch nozzle firmly and enters the nozzle with a kind of nozzle milling cutter and cleans all the burrs formed on the inner wall of the nozzle by milling. As the 3rd step, the Robot moves to the appropriate position at the spraying point and is automatically applied to the nozzle by means of liquid spraying known as Anti Spatter (TMS-VI). Thanks to this liquid, adhesion of spatter burrs to the nozzle during welding is reduced and the service life of the torch is extended, the process quality of the weld is positively affected.
Welding wires are packaged by the manufacturers in reel or drum type. It can be ordered from manufacturers in cardboard boxes of 250 to 500 kg. Wire drum systems ensure efficient MIG / MAG welding by preventing downtime caused by reel change, especially in robotic applications.