HFM 12P1
HIFIT high frequency hammering STANDARD
HFM 12P1
HIFIT high frequency hammering STANDARD
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 12P1
Compressed air supply: 6 to 8 bar
Power requirement (rechargeable battery): 3.7 V, 950 mAh
Dimensions (L x W x H): 288 x 46 x 170mm Weight: 1.8 kg
Storage temperature: 0 to +60°C
Pressure gauge measuring range: 0 – 12 bar
Air demand: approx. 250 l/min – @ 8 bar
Vibration on the arm: 6 m/s²
- Robust and compact design for hard-to-reach places
- Lightweight
- Powerful, often a single pass is enough
- Possibility of very high speed machining (up to 20mm/s feed rate)
- Work result is very reproducible
- High durability
- Easy to use
- Integrated lighting with excellent illumination
- Integrated pressure gauge
- Easy and fast replaceable wear parts
HiFIT, high frequency hammering
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 is a surface forging process that improves the surface quality of materials using high frequency hammering. This method creates vibrations on the surface of materials using a high-frequency hammering process. These vibrations improve corrosion resistance by reducing fatigue cracks on the surface and increasing surface hardness. The HiFIT method only improves the surface quality without any change in the properties of the material. This method is widely used in railways, aerospace, energy and defense industries.
Advantages of the High Frequency Hammering Method
The high-frequency peening method offers many advantages by reducing fatigue cracks on the surface of materials, increasing surface hardness and improving corrosion resistance. This method only improves the surface quality without any change in the properties of the material. It also improves corrosion resistance by increasing surface hardness. The high-frequency peening method also reduces fatigue cracks and extends the life of parts.
The Use of HiFIT in the Railway Industry
The railway industry uses surface strengthening methods to improve the durability and performance of high-performance components. The HiFIT method creates vibrations on the surface of materials using a high-frequency hammering process, which improves surface quality. This method is preferred to improve the durability and performance of high-performance parts used in the railway industry.
Methods for Increasing Surface Hardness and Corrosion Resistance
Surface hardness and corrosion resistance are important properties in many industries. Many surface strengthening methods are used to enhance these properties. The high-frequency peening method creates vibrations on the surface of the materials, which increases the surface hardness
increases and improves corrosion resistance. This method only improves the surface quality without any change in the properties of the material. It also improves corrosion resistance by increasing surface hardness. Other methods used to improve surface hardness and corrosion resistance include nitriding, carbonitriding, hardening, hard chrome plating and thermal spray coating.
Improving Surface Quality with HiFIT
The HiFIT method creates vibrations on the surface of materials using a high-frequency hammering process, which improves surface quality. This method is faster and more economical than other methods used to improve surface quality. Furthermore, the HiFIT method only improves the surface quality of the materials without any change in their properties.
HiFIT Method for Increasing Endurance
Durability is an important characteristic in many industries. The HiFIT method creates vibrations on the surface of materials using a high-frequency hammering process, which improves surface quality. This method is faster and more economical than other methods used to increase durability. Furthermore, the HiFIT method only improves the surface quality of the materials without any change in their properties.
HiFIT Use in Defense Industry
The defense industry uses surface strengthening methods to improve the durability and performance of high-performance parts. The HiFIT method creates vibrations on the surface of materials using a high-frequency hammering process, which improves surface quality. This method is preferred to increase the durability and performance of high-performance parts used in the defense industry. Moreover, the HiFIT method is widely used in the defense industry as it is a low-cost and fast method.
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