Hifit High-Frequency Impact Treatment (HiFIT)
Application Areas
Railways
The HIFIT (High-Frequency Impact Treatment) method can also be used for chassis strengthening. The HIFIT method is a method used to extend the life of metal structures such as chassis and reduces fatigue cracks on the surface and increases the strength of the material by using high frequency vibrations. The chassis is the structure underneath the vehicle that carries the vehicle’s load. The strength of the chassis is important for the safety and performance of the vehicle. The chassis is subjected to constant vibrations, impacts and abrasion, so over time it can develop fatigue cracks and lose strength. The HIFIT method can be used to extend the life of metal structures such as chassis.
References
Alstom Railed Vehicles, Germany, Italy, France
HSE-Henningsdorfer Stahlbau, Hennigsdorf, Germany
Crane Industry
The HIFIT (High-Frequency Impact Treatment) method can also be used in the crane industry. Cranes are constantly subjected to high stresses, impacts and abrasion, and fatigue cracks can develop over time. Therefore, the HIFIT method can be used to extend the lifetime of crane structures. High-frequency vibrations reduce stress on the surface of the crane material and make it last longer.
References
IŞIK Engineering Ltd. Co., Turkey
Indukran GmbH, Andernach, Germany
Kranbau Köthen, Köthen, Germany
Levator Oy, Hanko, Finland
Kocks Ardelt Kranbau GmbH, Eberswalde, Germany
Bridges and Highways
The HIFIT method also reduces the maintenance and repair costs of bridges, helping to create more sustainable bridges. Therefore, the HIFIT method is an effective method that can be used for the safety and durability of bridges.
References
Railway Bridge in Sweden
Skanska MHT, Hisingsbron AB
Maurer Söhne GmbH&Co KG, Munich, Germany
Schachtbau Nordhausen GmbH, Germany
Zwahlen et Mayr S.A., Aigle, Switzerland
Construction Machinery
The HIFIT (High-Frequency Impact Treatment) method is an effective method that can be used to increase the structural strength and extend the life of construction equipment. Construction machines are vehicles used for lifting, transporting and relocating heavy loads. These machines are constantly subjected to high stresses, impacts and abrasion, and fatigue cracks can form over time. Therefore, the HIFIT method is used for the safety and performance of construction equipment.
References
Sandvik Mining and Construction Oy
BAE Engineering Pty Ltd, Mackay, QLD, Australia
BAUER, Schrobenhausen, Germany
B.V. BECO, Vianen, Niederlande
Ruukki Construction Oy, Helsinki, Finland
TURKEY REFERENCES
GENERAL ELECTRIC – Renewable Energy – Kocaeli
DURAY TRANSPORT SYSTEMS – Bursa
IŞIK MÜHENDİSLİK – Ankara
HIDROMEK – Ankara
HIFIT high-frequency impact treatment (High-Frequency Impact Treatment – HiFIT)
HiFIT post-weld peening is a high-frequency mechanical impact process targeted at the weld transition zone. 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 plastically deformed 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. In this way, it ensures that productions are more durable and reliable.
HiFIT: High Frequency Hammering Method
Mechanical surface treatment methods are often used to improve the surface properties of materials and increase their durability. Among these methods, HiFIT, the process of impacting the surface with high frequency hammering, has become increasingly popular in recent years. So what is HiFIT and how does it work?
What is HiFIT?
HiFIT is a surface treatment method that creates high-frequency pulses on the surface of metal materials, improving surface quality and durability. This method has many advantages such as reducing surface roughness, increasing surface hardness, improving wear resistance and enhancing corrosion resistance. HiFIT is often preferred to increase the durability of high-performance parts, especially in the railways, aerospace, energy and defense industries.
How HiFIT Works
HiFIT uses high-frequency hammering to create impacts on its surface. This method creates a mechanical deformation on the surface of the material, reducing surface roughness and increasing surface hardness. The intensity and severity of the impacts can be controlled during the process, so damage to the material is minimized.
The HiFIT method can also be used to improve corrosion resistance on the surface of materials. Impacts on the surface create a protective oxide layer on the material, providing corrosion resistance. Therefore, the HiFIT process can be used to improve the durability of parts that are sensitive to wear and corrosion, such as oil pipelines, submarines and other marine applications.
The HiFIT method has many advantages over other surface treatment methods. In particular, the high frequency of the pulses on the surface allows the process to be completed faster. In addition, the HiFIT process can control the intensity and severity of the impacts on the surface.
for a more flexible transaction process. This allows different materials and parts to be processed in accordance with the machining process. Furthermore, the HiFIT method improves surface quality without any change in the material’s properties. This not only increases the durability of the parts, but also their performance.
The HiFIT method can be used in combination with other surface treatment methods, or it can be applied alone. The HiFIT method offers a more flexible solution than other surface treatment methods, especially since factors such as the intensity and severity of the pulses on the surface can be controlled.
As a result, HiFIT is a surface treatment method that improves surface quality and durability by creating impacts on the surfaces of materials with high-frequency hammering. It has many advantages such as reducing surface roughness, increasing surface hardness, improving wear resistance and enhancing corrosion resistance. The HiFIT method is often preferred to increase the durability of high-performance parts, especially in the railways, aerospace, energy and defense industries.