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智能焊接先驱      出彩品质就选荣仕杰
Intermediate frequency spot welding technology for hot formed sheet
编辑: 来源: 发布日期: 2019.11.08 Author: Editor: Source: Date: 2019.11.08
Information summary:
In this way, the quality of the solder joints of the hot-formed steel plate can be perfectly closed-loop controlled, and there is no spatter and burr, which can easily and thoroughly solve the welding process problems that have long plagued the automobile factory.
  • 热成型板 中频点焊技术 Keywords: Kunshan Rongshijie hot-formed sheet intermediate frequency spot welding technology  
  • 热成型板 中频点焊技术 ,使用的是动态电阻样本曲线的可视化方式,可以轻松地得出各种热成型钢板的动态电阻特性曲线,并详细分析出,不同类型,不同厂家提供的热成型钢板的动态电阻特性曲线,从而快速地得出各种热成型钢板合格的焊接规范及其动态电阻样本曲线;在准确得到焊接热成型钢板合格的焊点(无飞溅,无毛刺)之后,立即将该动态电阻样本曲线,下载到荣仕杰的焊接控制器里,接下来根据数据调节,这样热成型钢板的焊点质量,就能完美闭环控制,而且没有飞溅和毛刺,轻松彻底解决长期困扰汽车厂的焊接工艺难题。 Summary: Kunshan Rongshijie 's intermediate frequency spot welding technology for hot-formed plates uses a visualization method of dynamic resistance sample curves, which can easily obtain the dynamic resistance characteristics of various hot-formed steel plates, and analyze in detail the different types. The dynamic resistance characteristic curves of hot-formed steel plates provided by different manufacturers, so as to quickly obtain the qualified welding specifications of various hot-formed steel plates and their dynamic resistance sample curves; accurately obtain qualified solder joints for welded hot-formed steel plates (no spatter, no (Burr), immediately download the dynamic resistance sample curve to Rong Shijie's welding controller, and then adjust according to the data, so that the quality of the solder joints of the hot-formed steel plate can be perfectly closed-loop controlled, and there is no spatter or burr. Easily and thoroughly solve the welding process problems that have long plagued automobile factories.

What is a thermoformed steel plate body part?

The boron steel plate (initial strength is 500 ~ 600MPa) is heated to austenitizing state, and it is quickly transferred to the mold for high-speed stamping. Under the condition of ensuring a certain pressure, the product is in the mold body at a temperature greater than 27 ° C / s. The cooling rate is quenched and pressure-quenched for a period of time to obtain ultra-high-strength steel parts (1300-1600Mpa) with a uniform martensitic structure.

Why use hot formed steel body parts?


Extremely high material strength and ductility. The tensile strength of general high-strength steel plates is about 400-450 MPa, while the tensile strength of hot-formed steels has reached 500-800 MPa before heating, and increased to 1300-1600 MPa after heating forming. Therefore, the body made of hot-formed steel sheet greatly improves the collision resistance and overall safety of the vehicle body, and will play a good role in protecting people in the vehicle during a collision.

Effectively reduce vehicle weight and save energy consumption. Due to the extremely high material strength of the hot-formed steel sheet, one hot-formed part can be used in the design to replace the parts of multiple ordinary steel sheets. This kind of part has thin thickness, light weight and high strength, and has less rebound resilience than cold stamping. It is suitable for manufacturing A-pillar reinforced version, B-pillar reinforced version, floor parts, front end, etc., which can improve safety and reduce weight for automobiles.




The floor reinforcement board uses hot-formed steel sheet

Side-enhanced A / B column reinforced version using hot-formed steel

As mentioned above, hot-formed steel sheet has many advantages, so it is more and more widely used in automobile plants. However, due to the special welding resistance of hot-formed steel plates, the welding parameter band is very narrow. The welding resistance of hot-formed steel plates provided by different manufacturers is also very different. The differences are large, and these all pose serious challenges to the spot welding process of auto parts. It is difficult for automobile factories to solve the large splashes and burrs that occur during spot welding of hot-formed steel plates. Therefore, the subsequent burr grinding process can only be used to solve this problem. Setting the grinding process not only pollutes the environment, wastes manpower and resources, but also reduces the overall production efficiency of automobile parts.

Severe post-weld burrs appear at each weld spot during hot-formed steel spot welding

中频点焊技术 — 实现无飞溅,无毛刺的热成型钢板的点焊 Intermediate frequency spot welding using hot-formed platesspot welding of hot-formed steel plates without spatters and burrs

Rong Shijie's intermediate frequency resistance spot welding uses the visualization method of dynamic resistance sample curve to easily obtain the dynamic resistance characteristic curves of various hot formed steel plates, and analyzes in detail the different types and different manufacturers of hot forming. The dynamic resistance characteristic curve of the steel plate, so as to quickly obtain the qualified welding specifications of various hot-formed steel plates and their dynamic resistance sample curves; The dynamic resistance sample curve is downloaded to Rongshijie's welding controller. Next, turn on the adaptive adjustment function, so that the solder joint quality of the hot-formed steel plate can be perfectly closed-loop controlled, and there are no splashes and burrs. Welding process problems that have long plagued automobile factories.

At present, Rong Shijie's welding hot-formed steel sheet technology has been widely used in most domestic automobile factories and has received rave reviews. Whether in a manual welding station or a robot welding station, Rong Shijie's intermediate frequency resistance spot welding technology can perfectly perform ingeniously.



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微信图片_201911061549447

微信图片_201911061549449


English version:

Rong Shijie hot forming plate spot welding technology.
Abstract: Rongshijie's IF adaptive resistance spot welding uses a visualization method of dynamic resistance sample curve, which can easily obtain the dynamic resistance characteristic curves of various thermoformed steel sheets, and analyze in detail, different types and different manufacturers. The dynamic resistance characteristic curve of the thermoformed steel sheet is provided, so that the qualified welding specifications of various thermoformed steel sheets and the dynamic resistance sample curve thereof can be quickly obtained; the qualified solder joints of the welded thermoformed steel sheet can be accurately obtained (no splash, no burr ) Immediately, the dynamic resistance sample curve is downloaded to Bosch's welding controller. Next, the adaptive adjustment function is turned on, so that the quality of the welded joint of the thermoformed steel plate can be perfectly closed-loop controlled without splashes and burrs. Thoroughly solve the welding process problems that have long plagued automobile factories.
What is a thermoformed steel body part?

The boron steel plate (initial strength is 500 ~ 600MPa) is heated to the austenitizing state, and is quickly transferred to the high-speed stamping forming in the mold. Under the condition of ensuring a certain pressure, the workpiece is more than 27 ° C / s in the mold body. The cooling rate is quenched and quenched for a period of time to obtain ultra-high strength steel parts (1300-1600 MPa) with uniform martensite structure.

Why use thermoformed steel body parts?



Extremely high material strength and ductility. The tensile strength of a general high-strength steel sheet is about 400-450 MPa, and the tensile strength of the hot-formed steel before heating is 500-800 MPa, and is increased to 1300-1600 MPa after heat forming. Therefore, the body made of thermoformed steel plate greatly improves the collision capability and overall safety of the vehicle body, and plays a good role in protecting the inside of the vehicle during the collision.

Effectively reduce the weight of the vehicle and save energy. Due to the extremely high material strength of thermoformed steel sheets, it is possible to replace a number of common steel sheet parts with a hot formed part during design. This kind of parts has thin thickness , light weight and high strength. It is suitable for the manufacture of automobile A-pillar reinforced version, B-pillar reinforced version, floor parts and front end, etc., which can improve safety and reduce weight for automobiles.

Floor reinforced panels use thermoformed steel sheets

Floor reinforced panels use thermoformed steel sheets

Side-walled A / B column reinforcement uses thermoformed steel

Side-walled A / B column reinforcement uses thermoformed steel

As mentioned above, thermoformed steel sheets have many advantages and are therefore becoming more and more popular in automotive plants. However, due to the special welding performance of the resistance spot welding of the thermoformed steel sheet, the welding parameter band is very narrow, and the welding resistance of the thermoformed steel sheet provided by different manufacturers is also large, and the resistance welding properties of the imported and domestic thermoformed steel sheets are also The large difference is a serious challenge to the spot welding process of the parts of the automaker. It is difficult for automakers to solve the large splashes and large burrs that occur during spot welding of hot-formed steel sheets. Therefore, only the subsequent burr grinding process can be used to solve this problem. Setting the grinding process not only pollutes the environment , but also wastes manpower and material resources, and also reduces the overall production efficiency of aut o parts.


Severe post-weld burrs at each solder joint during spot welding of hot-formed steel sheets

Severe post-weld burrs at each solder joint during spot welding of hot-formed steel sheets

Use Rongshijie IF welding technology-spot welding of sputter-free, burr-free thermoformed steel sheets

Rong Shijie's medium frequency resistance spot welding uses a visualization method of dynamic resistance sample curve. It can easily obtain the dynamic resistance characteristic curves of various thermoformed steel sheets, and analyze in detail the different types and different manufacturers provide thermoforming. The dynamic resistance characteristic curve of the steel plate, so as to quickly obtain the qualified welding specifications of various thermoformed steel sheets and their dynamic resistance sample curves; after accurately obtaining the qualified solder joints of the welded thermoformed steel sheets (no splash, no burr), immediately The dynamic resistance sample curve is downloaded to Bosch's welding controller. Next, the adaptive adjustment function is turned on, so that the solder joint quality of the thermoformed steel plate can be perfectly closed-loop controlled, and there is no splash and burr, and the long -term trouble is easily solved. The welding process of the car f actory.



At present, Rongshijie's sample curve thermoformed plate welded thermoformed steel plate technology has been widely used in most domestic automobile factories, and received rave reviews. Whether in the manual welding station or the robotic welding station, Rongshijie's medium-frequency resistance spot welding technology can be perfectly interpreted.

Bosch Rexroth spot welding of thermoformed steel in manual work

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