HFM 21R1-S
HIFIT high frequency hammering PREMIUM
HFM 21R1-S
HIFIT high frequency hammering PREMIUM
High frequency hammers (HFMI) work with a hardened pin with a 3 mm diameter ball on the workpiece. This pin is forged in the weld bead with an adjustable intensity at about 180-300 Hz. Local mechanical deformations occur in the form of the treatment pathway. The induced residual compressive stress prevents cracking of the part and crack propagation on the surface. This method significantly increases the fatigue strength and service life of welded fabrications operating under dynamic load. Compared to other surface treatment methods, HiFIT post-weld peening provides a higher rate of increase in fatigue life.
During this process, the weld transition zone is geometrically translated and strengthened through local shape change. In this way, internal compressive stresses prevent crack formation on the surface and fatigue life is increased. Tests show that HiFIT post-weld peening provides a 5 to 15 times increase in service life.
HiFIT post-weld peening is particularly important for welded fabrications operating under high dynamic load. This method creates deformation in the weld transition zone, reducing the stress on the surface and preventing crack formation. This ensures that productions are more durable and reliable.
f < A welded joint made with a material of 355 MPa is in FAT 63 class. In this case, the maximum load range for 2 x106 cycles is 63Mpa. (See Fig.2)
If upgraded with the HiFIT method, the FAT class of the welded joint increases by 4 degrees to a value of 100. (See Fig.1)
In the new state, the maximum permissible load is now 100 MPa. The increase is about 60%.
BUR-MAK
HIFIT high frequency peening
HFM 21R1-S
The HFM 21R-S also provides the basis for the HFM 21R-R HiFIT device, which can be used for automated machining on robots or CNC machines. This way, you can easily integrate the devices needed to automate your welding processes. We are also always available to help you with any adjustments that need to be made to adapt to your existing machine. With our customer-oriented approach, we strive to find the best solution for your business.
Compressed air supply: 6 to 8 bar
Power requirement (rechargeable battery): 3.7 V, 950 mAh
Dimensions (L x W x H): 225x60x205 mm Weight: 2.3 kg
Storage temperature: 0 to +60°C
Air demand: approx. 250 l/min
Vibration on the arm: 3.9 m/s²
-
Robust and compact design for hard-to-reach places
-
Low weight
-
Powerful performance
-
Longevity
-
Easy to use
-
Integrated lighting with excellent illumination
-
Easy and quick replaceable wear parts
-
Welding spatter can be easily cleaned
-
Work result is highly repeatable
-
Anti-rotation support of the pin
-
10 graduated scales indicating the level of intensity
- What is HiFIT?
HiFIT is a High Frequency Mechanical Forging Process to improve the working stability and service life of dynamically loaded welded steel constructions.
HiFIT improves weld fatigue strength.
Hifit Post Weld Treatment (PWT) is a surface forging method called post weld treatment. This process is applied after welding to increase the fatigue strength and service life of the weld zone.
Hifit Post Weld Treatment is performed by geometrically translating the weld transition zone using a high-frequency mechanical impact method and plastically deforming and strengthening it through local shape change. This process reduces the stress in the weld transition zone and prevents crack formation and propagation of internal compressive stresses. This increases the fatigue life of the welded part and extends its service life.
Hifit Post Weld Treatment is important for welded fabrications operating under high dynamic loads as it provides a higher enhancement rate than other surface strengthening methods. This type of fabrication is often subjected to severe loading and therefore carries a higher risk of crack formation. Hifit Post Weld Treatment prevents crack formation by reducing the stress on the surface and ensures longer life and reliability of such fabrications.
Hifit Post Weld Treatment process is distributed by Burmak Industrial in Turkey.
- How Does the HiFIT Method Work?
The HiFIT method uses high-frequency hammering to create vibrations on the surface of the material. These vibrations reduce fatigue cracks on the surface of the material and improve corrosion resistance by increasing surface hardness. The HiFIT method does not change the properties of the material, it only improves the surface quality.
- In Which Industries is the HiFIT Method Used?
The HiFIT method is widely used in the automotive, aerospace, energy and defense industries. The HiFIT method is preferred to improve the durability and performance of high-performance parts used in these industries.
- What are the Advantages of the HiFIT Method?
The HiFIT method improves surface quality without any change in the material’s properties. Therefore, it improves the performance of the material while improving the surface quality. It also improves corrosion resistance by increasing surface hardness. The HiFIT method also reduces fatigue cracks and extends the life of parts.
Our Customer Representative is Waiting to Serve You
We are here to help your company, your customers and your employees.