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Trochoidal milling ( TPC milling): Roughing without tool breakage and up to 4x more productivity with maximum process reliability!
Advantages: Trochoidal milling vs. classic HPC and MTC machining strategies
Optimize your machining, reduce tool costs and increase your process reliability – with trochoidal milling or TPC milling as the new standard in your production. For milling machines, lathes with driven tools and turning-milling centers.
And the more difficult it is to machine the material, the more productive it will be to switch to TPC milling. This includes, above all, hardened materials, high-alloy steels and special alloys.
Why you're leaving money on the table with HPC and MTC today
Many manufacturing companies still rely on HPC milling for machining centers and MTC roughing strategies for turning machines with driven tools.
Challenges often arise with this approach:
- Tool breakage and highly fluctuating tool life
- High radial forces and vibrations
- Heat input into the component and into the tool
- Uncontrolled chip formation and removal, especially in INOX, Titan and Inconel
- Long processing times and machine downtimes
As a result, your manufacturing process is unreliable, costs increase and schedules are at risk.
Trochoidal milling: The next stage of your roughing
Trochoidal milling is particularly suitable for situations where high tool loads, difficult materials and deep cavities occur:
- Roughing in tough or hard-to-machine materials
- Deep pockets or long trimming paths
- Thin-walled components
- When tool life and process reliability are critical
Because trochoidal milling works with:
- Small width of intervention
- High cutting depths
- Dynamic, load-constant tool paths
This is not only true for machining centers, but also for turning machines with driven tools and turning-milling centers.
Trochoidal milling thus becomes a uniform roughing strategy that can consistently replace both HPC and MTC.
HPC & MTC vs. Trochoidal milling in comparison
| HPC / MTC | Trochoidal milling | |
| Intervention width | high | low (typically 5-15%) |
| Tool load | changing load peaks | constant, low |
| Tool life | limited | up to 2-5 times higher |
| Chip shape | often long, critical | short, chip can be easily dissipated |
| Process reliability | vulnerable in tough materials | very high, also in INOX, Titan, Inconel |
| Suitable for thin-walled parts | limited | ideal |
| Suitable for manless shifts | limited, especially with materials that are difficult to machine | very well suited |
| Economic efficiency | can only be increased to a limited extent | significantly higher, especially in series operations |
Do you have any questions? Would you like to arrange a consultation?
That is how we accompanying the transition from HPC/MTC to trochoidal milling:
- Parameter recommendations for milling machines, lathes and turning-milling centers
- On-site optimization directly at your machine
- Training your programmers and machine operators
- Comparison measurements: HPC/MTC vs. trochoidal milling (time, tool life, costs)
- Ideal selection of clamping equipment
The matching TPC milling cutters for perfect trochoidal milling from GARANT and HOLEX
Trochoidal trimming does not unfold its full performance until the tool has been adapted to the strategy. We offer a complete portfolio of high-performance cutters specifically designed for dynamic and trochoidal roughing strategies – perfect for modern CAM paths and demanding materials.
Aluminium (ISO N)
Steel ( ISO P)
High-alloy steels ( ISO M) / Titan ( ISO S)
Do you have any questions? Would you like to arrange a consultation?
That is how we are accompanying the transition from HPC/MTC to trochoidal milling:
- Parameter recommendations for milling machines, lathes and turning-milling centers
- On-site optimization directly at your machine
- Training your programmers and machine operators
- Comparison measurements: HPC/MTC vs. trochoidal milling (time, tool life, costs)
- Ideal selection of clamping equipment
