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နေအိမ်> ဘလော့ဂ်> ပွတ်တိုက် Stir ဂဟေဆော်ခြင်း (FSW) ၏ကောင်းကျိုးနှင့်ဆိုးကျိုးများ - (FSW နှင့် Rotary Welding)

ပွတ်တိုက် Stir ဂဟေဆော်ခြင်း (FSW) ၏ကောင်းကျိုးနှင့်ဆိုးကျိုးများ - (FSW နှင့် Rotary Welding)

2020-11-23

ပွတ်တိုက်ဂဟေ: နိယာမ, အားသာချက်များနှင့် applications များ

Friction Stir Welding (FSW)

Friction Stir Welding (FSW) သည်ဖိအားဖြစ်စေသောဂဟေအမျိုးအစားတစ်ခုဖြစ်သည်။ ဤတွင်မျက်နှာပြင်များ၏အရည်ပျော်မှုသည်အစိတ်အပိုင်းများ၏ပွတ်တိုက်အားအား၏စွမ်းအင်ကိုအပူစွမ်းအင်အဖြစ်သို့ပြောင်းလဲခြင်းဖြင့်ရရှိသည်။

Friction Stir Welding (FSW) - အဲဒါဘာလဲ။

ပွတ်တိုက်မှုလှုံ့ဆော်မှုဂဟေဆော်ဖိအားကိုအသုံးပြု။ ဆက်သွယ်မှုအမျိုးအစားတစ်ခုဖြစ်သည်။ ဆိုလိုသည်မှာဂဟေဆော်ရမည့်အပိုင်းများသည်တစ် ဦး နှင့်တစ် ဦး ပွတ်တိုက်အားကြောင့်အပူပေးမည်ဟုဆိုလိုသည်။ အစိတ်အပိုင်းတစ်ခုသည်တစ်ခုနှင့်တစ်ခုချိတ်ဆက်ရန်ခွင့်ပြုသည့်အပိုင်းတစ်ပိုင်းသည်ငြိမ်နေဆဲဖြစ်ပြီး၊

ဤနည်းလမ်းသည်အတော်လေးအသစ်ဖြစ်သည်။ ထို့အပြင်အထူးကျွမ်းကျင်သူများသို့မဟုတ်အပျော်တမ်းဂဟေဆော်သူအားလုံးသည်ထိုကဲ့သို့သောဂဟေဆော်သည့်နည်းပညာနှင့်ရင်းနှီးကျွမ်းဝင်ရန်အချိန်မရှိခဲ့ပါ။ ထို့ကြောင့်ကျွန်ုပ်တို့သည်၎င်းနည်းလမ်း၏လုပ်ငန်းလည်ပတ်မှု၏နိယာမများ၊ အားသာချက်များ၊

ဤဆောင်းပါး၌၊

  1. How ပွတ်တိုက် Stir ဂဟေ (FSW)အလုပ်လုပ်သလဲ။
  2. အဘယျသို့သောနည်းပညာအမျိုးအစားများတည်ရှိ?
  3. ပွတ်တိုက်ဂဟေ၏အားသာချက်များနှင့်အားနည်းချက်များကိုဘာတွေလဲ?

 

friction Stir Welding (FSW) အမျိုးအစားနှင့်အမျိုးအစားများ

ယေဘုယျအားဖြင့်ပွတ်တိုက်အားဂဟေဆော်ခြင်းကိုအောက်ပါစစ်ဆင်ရေးများတွင်အသုံးပြုသည်။

  • ၁၈၀၀ ဒီဂရီအထိအရည်ပျော်မှတ်ရှိသောသတ္တုနှင့်သတ္တုစပ်များပေါင်းစပ်ပါဝင်သည်
  • တူညီသောအထူ၏ပြားချပ်ချပ်အစိတ်အပိုင်းများကိုတစ်လှည့်ထောင့်ဖြင့်ဂဟေ
  • longitudinal ပိုက်ဂဟေ
  • သော့ခတ်အောင်
  • သေးငယ်သောအစိတ်အပိုင်းများကိုစက်မျက်နှာပြင်များဖြင့်အစားထိုးခြင်း။

Friction welding is suitable for joining contaminated parts, since it does not require their preliminary cleaning. Moreover, we remove the oxide film and grease at the beginning of mutual friction of the surfaces.
There are the following main types of friction welding:

Friction Stir Welding (FSW) suppliers

  1. oscillatory (linear)
  2. with stirring, with continuous drive
  3. radial
  4. orbital, inertial

Advantages and disadvantages of the method

The advantages of ပွတ်တိုက် Stir ဂဟေ (FSW) are:

  • lower energy consumption compared to other types of welding
  • Moreover, a small number of defects
  • uniform structure of the weld
  • the ability to accurately control the process
  • Small amount of harmful emissions
  • Hence, high metal utilization rate
  • The ability to automate the process.

Friction Stir Welding (FSW) manufacturers

  1. Low requirements for surface cleanliness. There is no need to clean the surface of the parts to be welded. The side surfaces may also be uncleaned. Similarly, this significantly saves time spent on auxiliary operations.
  2. Possibility of welding various metals. The welding process allows welding both alloys and metals of the same name and dissimilar alloys. Furthermore, other welding methods are useless here. For example, it is possible to weld steel to aluminum, copper; aluminum with copper, titanium and so on.
  3. Hygienic process. The welding process compares favorably with the absence of ultraviolet radiation.

Disadvantages of the Friction Stir Welding (FSW):

  • Friction Stir Welding (FSW) giveslimited applicability
  • bulky equipment
  • Limited connection surface.

Friction welding, principle and features:

Friction welding is a type of pressure welding in which heating goes out by friction caused by the rotation of the welded product.

Due to the emerging frictional forces at the points of contact, a very rapid heating and transition of the material into a plastic state occurs.

Thus, friction welding goes by a process in which mechanical energy supplied to one of the parts to be welded is converted into heat.

Friction welding is a process that converts the mechanical energy of the movement of one of the parts into heat energy. Rotation is the most common method for this. Similarly, either one of the parts or an insert between them can rotate. At the same time, the parts presses against each other by constant or increasing pressure. In this case, heating occurs directly at the junction of the parts.

How does Friction Stir Welding (FSW) work?
ပွတ်တိုက် Stir ဂဟေ (FSW) process is not so simple. After the completion of the welding process, upsetting occurs and the rotation stops quickly.

In the welding zone at the joints of the parts, the following processes take place: with an increase in the rotation frequency of the workpieces and the effect of compressive pressure, the contact surfaces rub against each other.

Similarly, fatty and contact films present on parts in their original state are destroyed. After which the boundary friction comes by dry friction. Hence, individual micro protrusions begin to contact each other and deform.

Juvenile areas form, where the bonds of surface atoms do not saturate. Moreover, metal bonds immediately appear between them. In addition, they immediately destroy due to the relative movement of the surfaces.

Principles of using friction stir welding for joints

This process means that one does during its rotation. Moreover, it will create thermal energy, as a result of which the materials combines with each other.

But not only one of the parts can rotate, but also a special tool for friction stir welding in the form of an insert. In addition, it also contributes to a high-quality connection of parts.

Friction welding: technology features

 

Friction welding is a subtype of pressure welding. The technology involves heating the parts to be welded using friction. For this, one of them moves (rotates), while welding with the other.

Application area of Friction Stir Welding (FSW)

Friction Stir Welding (FSW)is most widely applicable in mechanical engineering, primarily in tool production. It is also common in the assembly of internals of nuclear reactors. Friction bonding of aluminum and magnesium alloy workpieces is popular in:

  • electrical engineering
  • electronics and
  • aerospace

The technology is also common in transport engineering. The radial method is famous in the production of equipment for the mining and processing industries.

Conclusion

More recently, ပွတ်တိုက် Stir ဂဟေ (FSW) has begun its journey in shipbuilding and food processing engineering.

We have covered such a process as friction welding. As you can see, this welding process is different from others, and has many advantages. However, it is quite specific and not suitable for all tasks. Nevertheless, in many cases its use is justified.

 

The technology demonstrates efficiency and a tendency to replace traditional welding methods in such areas as:

  • to replace soldered and riveted joints;
  • Replace contact electric welding;
  • to restore products and complex tools;
  • for welding workpieces to prepared surfaces
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