High-Pressure Water Jet Deburring by BENSELER

High-pressure water jet deburring - often referred to as HDW - is suitable for deburring, chip removal and cleaning of components, primarily made of light metals. The burrs on the component are processed precise with a high-pressure water jet. The water jet is directed at the areas of the workpiece to be processed at a high pressure of up to 800 bar. With the help of different nozzle concepts, BENSELER can also reach the edges of difficult-to-access intersections and bores.

Different nozzle concepts are used depending on the component geometry and technical requirements:
• Rotary nozzles or flat jet nozzles for processing surfaces
• Rigid nozzles for edges
• Nozzle lances with partially rotating nozzle heads for internal component areas

The high kinetic energy of the water jet removes burrs on the machining edges just as quickly and reliably as chips and other impurities.
BENSELER uses both freely programmable and robot-controlled systems so that individual parts and large series can be processed equally economically.
Depending on the system technology, the component is fixed in position so that the nozzles process the component. Alternatively, a robot moves the component in front of the fixed nozzles.

The biggest advantage of high-pressure water jet deburring is the precise processing of edges and surfaces at up to 1,000 bar.

High-pressure water jet deburring is used where other processes reach their technical and economic limits, for example on components with complex workpiece geometries or interrupted cuts.

HDW enables a high functional quality of the components through particularly reliable deburring and cleaning after technical cleanliness. This is a great advantage, especially for post processes such as joints, coating or the assembly of components.

• Deburring, stress-relieving and cleaning in a single operation
• Precise approach and deburring of defined areas
• Also suitable for larger workpieces (travel distances: x=300 mm, y= 300 mm, z=600 mm)
• Particles bound in the water, natural "blasting material", environmentally friendly
• No deformation (so-called peening effect)
• No thermal reaction (heat formation)
• Wide range of geometries and materials (steel, light metals including aluminum alloys, plastics, composite materials, etc.)

High-pressure water jet deburring is used particularly in the automotive, mechanical engineering, plant construction and consumer industries. This process is particularly suitable for deburring external and internal burrs and for materials such as aluminum, steel and plastic. HDW is often used at BENSELER as a pre-treatment before thermal or electrochemical deburring in order to achieve a defined initial state (free of chips, drill caps and long burr flags).

Here, parts are clamped externally onto a part-specific fixture. The machine is then loaded with the fixture - which BENSELER designed and procured itself. The water jet then automatically scans the areas to be processed according to the program. At the end of the program, the parts can be packed directly. If required, industrial parts cleaning can be carried out afterwards.

The automated process consists of several process steps: First, the components in the customer packaging are fed directly to the system. The robot then picks up the components. After degreasing, the parts are positioned directly in front of the nozzles and high-pressure processing takes place. This is followed by further rinsing and drying processes. This enables the components to be delivered dry.

In addition to high-pressure water jet deburring, BENSELER offers the following customer services:

•  Thermal deburring (TEM)
•  Electrochemical machining (ECM)
•  Chemical deburring (CBE)
•  Cryogenic deburring (KRE)
•  Selective Laser Melting including finishing (SLM)
•  Industrial parts cleaning

Other special services are available upon request.