Heat exchanger
The conversion of fossil energy carriers to electricity takes place via a power plant. These plants burn coal and oil—as well as biomass and wood as alternative energy sources—to produce hot steam. In these boiler systems, smooth-tube or finned tube heat exchangers serve as air pre-heaters. Heat exchangers are also found in the oil and gas and nuclear industries.
1. Heat exchanger plate
Heat exchanger plates
Nuclear heat exchangers operate at a high pressure, which means that the heat exchanger plate (HEP) thickness is around 600–800 mm (23.622–31.496 inch). The material used for these applications is a combination of low carbon steel and ISO S cladding or low carbon steel and stainless cladding.
2. Short hole drilling with CoroDrill® 870
3. CoroTurn® 107 and T-Max® P
Short hole drilling
The short hole drilling process in heat exchangers is used for the support of the tubes on the vessel side. These support plates are around 30 mm (1.181 inch) thick. The drilling is normally done as stack drilling. The most common material is stainless steel because of its strong corrosion resistance.
We recommend ®CoroDrill 870 for this type of operation.
Learn more about the CoroDrill 870 and general drilling here.
Machining challenges
- Reliable process
- Maximum number of plates in stack
- Poor tool life
®Solution with CoroDrill 870
- Reliable and secure process
- Easy handling and secure tip changing
- Optimized chip control and evacuation
- Long, predictable tool life and high productivity
- Low cost-per-hole and excellent hole quality
Heavy turning
A typical heavy turning application is the turning of large components with uneven surfaces in combination with very large and varying cutting depths. It is performed in order to remove the forging or casting skin as well as other defects from the component's surface. With the clean surface, the component is ready for further processing.
We recommend using both ®T-Max P and ®CoroTurn 107 with positive and negative inserts for this type of operation.
Learn more about heavy turning here.
Machining challenges
- Reliable process
- Maximum number of plates in stack
- Good tool life
Solution with T-Max®
P and CoroTurn 107
®
- Reliable and secure machining, even in roughing applications
- Full range of clamping and coolant systems for all materials and applications
- Possibility to optimize by using dampened tools
CoroDrill® DE10
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Stack drilling
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CoroDrill® 870
Designed for the intermediate hole-tolerance area of H9–H10, the CoroDrill 870 exchangeable-tip... chevron_right
Blisk
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