Why turning stainless steel is special
Turn stainless steel
In addition to many other methods, turning is also a suitable method for machining stainless steel. We will show you how it works and what should be taken into account. We will also explain the advantages and disadvantages of turning stainless steel and provide you with tips for implementation.
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What is meant by turning stainless steel
In addition to stainless steel milling, turning is another production technique in the field of machining or subtractive processes for smoothing stainless steel workpieces and shaping them into the desired end product.
The terms mean that chips are removed step by step during the machining of the stainless steel piece until the desired shape is achieved. The difference to milling stainless steel is that although the workpiece is clamped during turning, it moves during machining.
In CNC turning, the chips are removed from the tool layer by layer by a turning tool attached to the tool slide. This moves in a feed motion against the workpiece, which simultaneously rotates around its own axis.
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CNC turning
Technical data
| Available diameters: | 1 mm – 5,300 mm |
| Available lengths: | 0.5 mm – 20,000 mm |
| Tolerances: | up to +/- 0.05 mm |
| Surface roughness: | up to Ra 0.8 / Rz3.2 |
| Materials: | Over 600 materials |
| Lot sizes: | from 1 piece |
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| Aluminum | Inconel |
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| Casting | Plastics |
| Stainless steel | Copper |
| Steel | Brass |
| Hard fabric | Titanium |
| More on request |
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Various turning processes
The most common turning methods include the following:
Longitudinal circular turning
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Cross-piercing turning
Processing takes place in both transverse and longitudinal directions.
This requires the use of lathes that have special grooving cutters to carry out this process.
Cross-cut turning is the right choice for producing symmetrical shapes.
The name of the turning method is always derived from the result of the surface treatment. Facing, for example, makes the surface flat.
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Tip
Modern lathes
Would you like to produce threads, hexagons or wrench flats as cost-effectively as possible? With modern machining centers like CNC24, this is easily possible.
By combining different turning and milling techniques, such workpieces can be produced directly on one and the same CNC machine.
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You receive your quality-tested components including detailed test certificate.
Areas of application for stainless steel turned parts
Industries for turned parts
Similar to milled components, stainless steel turned parts are primarily used in the following industries:
- Plant engineering
- Mechanical engineering
- Medical technology
- Automotive engineering
- Aerospace technology
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With us, there are no long waiting loops with changing contact persons in the call center. We still provide personal support. You will therefore be assigned your personal account manager right at the start of our collaboration. Everything that needs to be done in writing is done digitally with us.
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Turning stainless steel simply and digitally
What special challenges can arise when turning stainless steel?
To avoid unpleasant deformations or thickening in unwanted areas, a cooling lubricant supply should therefore be used.
It is also advisable to keep the setting angles extremely small in order to avoid excessive burr formation. Only high-quality machines should be used for turning stainless steel.
This ensures that the surfaces of the components to be manufactured are not damaged.
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What else needs to be considered when turning stainless steel?
The machinability of stainless steel is primarily dependent on its alloy content. The carbon content is the most important value, as it determines the structural components.
There are also influencing factors such as heat treatment and the original manufacturing process, i.e. whether the stainless steel alloy was forged or cast, for example.
Tips for turning stainless steel
Tips
- You generally achieve the best results with long-chipping stainless steel
- Only a lathe with cutting forces between 1800 and 2850 N/mm² is suitable for turning stainless steel
- Would you like to turn ferritic or martensitic stainless steels? Then a Rockwell hardness of at least 55 is the prerequisite for this
- Is your stainless steel piece inherently difficult to machine? Add sulfur to the alloy, which can improve machinability
- Nickel and molybdenum are often used to improve temperature resistance. This is basically correct, but pay attention to the ratio. The higher the proportion of these materials, the lower the machinability at the same time
- To determine the correct speed and feed rate for stainless steel turning, refer to the available tables or the largest diameter of your chip removal piece
- The feed rate should be as high as possible during rough turning for economic reasons. During finish turning, a lower feed rate generally results in improved surface quality
Conclusion
Why CNC24 is the best contact for turning stainless steel
Stainless steel in particular poses a major challenge when turning due to its properties. Save yourself a lot of time and effort and leave the production of your components to us.
Thanks to simple procurement processes and state-of-the-art CNC machines, we are able to process stainless steel and many other machinable materials quickly and cost-effectively. It doesn’t matter whether you need a prototype or want to start production in small or large series – we guarantee you tested quality and fast, punctual delivery.
In addition to standard express delivery within six to 12 working days, we also offer a 72-hour service. See for yourself and request your personal quote today. Do you have any questions? Our team will be happy to assist you by telephone on +49 (0)30 994 04 904.
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