Casting machining with system – powered by LUKAS-ERZETT tools.
Entering a foundry, it quickly becomes evident that the machining of castings is a crucial step in industrial production processes that determines the quality and functionality of a component. Engine blocks and gearboxes for the automotive industry, housings in mechanical engineering or components for the aerospace industry – all cast parts must be deburred, fettled, milled and precisely finished. Sprues, risers, casting skins and inclusions are challenging for both operators and tools. Tool manufacturer LUKAS-ERZETT offers a broad range of tool solutions that are perfectly adapted to the special strains and requirements of machining castings – for manual applications as well as automated processes. These range from high-performance burrs and specialised mounted points to specifically developed diamond cutting discs. The decisive factors here are not only high removal rates, but also the combination of tool life, control and process reliability.
Because special tools are necessary for machining castings: LUKAS-ERZETT.
Machining castings requires tool solutions that combine robustness and precision – characteristics that LUKAS-ERZETT has been systematically developing for decades.
For cast parts differ significantly from rolled or forged parts. The casting skin, for example, is often characterised by moulding sand inclusions, hard particles and different microstructures. In addition, there are sprues, risers, burrs and possibly holes or cracks that need to be removed or reworked.
In other words, machining castings is often a force-intensive work step involving high mechanical and thermal loads. Cutting edges meet materials of varying densities, bonds must remain stable under strong pressure, while even slight imbalances can cause vibrations during manual or machine processing. Additionally, many machining points are hard to reach or geometrically complex – such as in engine blocks, gearbox casings or turbine components.
The experts at LUKAS-ERZETT therefore take the special requirements of machining castings into account right from the development phase of their milling, grinding and cutting tools – from grey cast iron to cast steel. The decisive factor here is the combination of high removal rates, smooth running and a robust design.
The aim is to achieve a stable and efficient machining process, rather than one that is as aggressive as possible.
The result of this development work are high-quality LUKAS tools that can have an extremely positive influence not only on the machining speed, but also on the surface quality and ultimately the production costs.
Reliably mastering the stresses and strains of machining castings with LUKAS milling tools.
LUKAS tools for machining castings are developed and manufactured with the aim of making the work with them both efficient and controllable. This begins with coarse stock removal: sprues, risers and solid burrs must be removed to enable finer machining. This step requires tools that remain manageable even under heavy workloads. When milling cast materials in particular, considerable forces are exerted on the cutting edges and shank – especially when there are irregular microstructures or hard inclusions.
A typical problem here are tooth fractures. When cutting edges encounter varying material densities or uneven cutting conditions arise, conventional burrs can quickly reach their limits. For the user, this not only means interruptions in the work process, but also increased costs and reliability risks.
LUKAS-ERZETT fulfils these requirements with burrs specially adapted for machining castings, such as those from its CAST series. Their tooth geometry is designed to remain stable even during aggressive machining and to enable the uniform removal of material. Robust carbide qualities and the strong soldered joints ensure that LUKAS tools retain their shape even with intensive use. In addition, their low-vibration running facilitates manual guidance, as well as use on machines or robot systems. LUKAS tools not only increase the process reliability when machining castings but also improve the workplace ergonomics.
In practical terms, this means that the decisive factor is not only the removal rate per minute, but also the combination of faceted toothing, proven carbide quality and reliable soldered joints, which characterise LUKAS burrs for example.
Finishing work with LUKAS grinding tools: control over the surface and details when machining castings.
Burrs have been removed, sprues shortened – now it is time to smooth down the transitions, finish the repair welds, or cleanly mill any holes or cracks. LUKAS-ERZETT has developed special mounted points to handle these requirements, with grain mixtures and bonds that are optimised for machining cast materials. That is because not all cast materials are the same. The hardness, toughness and grinding behaviour can vary considerably depending on their carbon content and microstructure.
LUKAS mounted points fulfil these requirements perfectly. On hard edge layers, changing material transitions and hard-to-reach areas in the component. Uneven tool guidance or overly aggressive engagement can damage the surface or cause unnecessary material removal. Controllable, smooth running is therefore crucial.
LUKAS mounted points in the qualities NK-BA hard, HK or MK combine different types of aluminium oxide with high-resistance bonds to enable both powerful material removal and precise surface finishing.
Good to know: in addition to their removal performance, tool life and smooth running, LUKAS tools also offer impressive ergonomics. Many machining points are located deep inside the component or are only accessible to a limited extent. Longer shanks and slim geometries make for easier handling and reduce the strain on the user. Smooth-running tools also deliver reproducible results in machine or robot-supported applications.
This makes fine machining with LUKAS tools a decisive quality step that can help achieve high surface quality, process stability and efficiency.
LUKAS cutting tools for machining castings: versatile, powerful, efficient.
In the field of cutting systems, LUKAS-ERZETT also relies on tools that are harmonised with the requirements for machining castings in terms of both quality and technology. For example, the diamond cutting discs from the VDC series are available with special diamond coatings. They were developed specifically for cutting grey cast iron (GG, GGG) and also enable aggressive cutting combined with a long tool life when machining GFRP or mineralisations.
Numerous other tools from LUKAS-ERZETT are also suitable for use with robot systems. This allows casting machining processes to be designed more efficiently and reproducibly – an aspect that is becoming increasingly important in modern production environments.
The C24 S BF cutting disc from LUKAS is particularly versatile. This universal cutting tool is equally suitable for concrete, stone and cast material. Flexible solutions are required for reliably cutting different materials such as bricks, cast iron pipes or concrete beams, particularly in building construction and civil engineering, new buildings, core renovations or road construction. The high proportion of silicon carbide in the cutting material ensures a strong cutting performance.
The C24 S BF is also used in foundries, such as for fettling work. Risers and sprues can be cleanly removed, while inclusions and imperfections are precisely machined. LUKAS-ERZETT’s cutting technology fits seamlessly into the overall casting machining process.
Efficient solutions for every requirement in casting machining: LUKAS-ERZETT.
Whether coarse stock removal, precise fine machining or fast cutting: LUKAS-ERZETT offers a broad range of milling, grinding and cutting tools for the many different requirements of casting machining. Continual developments and innovative tool concepts help to make processes efficient and economical. For special requirements that are not catered for by the standard range, LUKAS-ERZETT develops bespoke solutions on request. Further information and detailed advice are available directly from LUKAS-ERZETT or online at lukas-erzett.com.