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PROFESSIONAL ADVICE PROFESSIONAL ADVICE

analysis of the multiple factors they employ. Simple models dedicated to a certain tool, workpiece Suggest app is a tab on Seco's My Pages
material and cutting conditions can be calculated manually in a short time. The basic Taylor website and is free for mobile devices with
model can provide results relatively quickly when calculated manually, for instance. iOS® or Android® operating systems, and
Nonetheless, even the extended Taylor model can require extensive time to calculate by computers with a web browser.
hand, and manual calculation of factors in the Colding equation is impractical in a production Build on Seco's over 80 years of
environment. To take full advantage of these advanced models’ predictive abilities, manufacturers metalworking experience, Suggest is designed
should utilise computerised calculation programs. These programs can resolve complex equations to provide tool guidance for new tasks or
in seconds or less and provide useful machining guidance. However, the electronic calculation ongoing projects. The app organizes complex
aids do not remove a machinist’s responsibility to think critically and compare the results with data on thousands of cutting tools and
common sense and experience gained in practical work on the shop floor. processing conditions and provides detailed
Conclusion recommendations for the selection of tools in
accordance with the information entered by
the user.
Normal Tool Wear – Colding’s Model Suggest's features go well beyond the
online directory. It is a functional product
identifier that quickly identifies the tools
and workflow required to machine a part to
the required tolerances. Suggest can make
recommendations based on minimal data.
However, the more information a user
Tool life T Magnification Cutting speed the recommendation will be. With default values
provides, the more accurate and effective

provided for each input field, Suggest is simple and easy to use, even for users with basic
metalworking knowledge. Users can edit the specified data, as well as filter, sort and compare
information to get the most personalized information. All offers can be saved electronically or
Cutting speed Equivalent chip thickness created for print.
This comprehensive resource
simplifies the planning process and
allows you to easily identify productive,
In the end, tool life modelling is not a cost-effective solutions and processing
purely academic pursuit; it exists to enable techniques for specific tasks.
manufacturers to increase productivity and
control costs. The key considerations in
manufacturing are how long it will take and how
expensive it will be to produce a certain number
of acceptable workpieces. It is important to
know how long a tool can cut accurately and
productively before replacement is necessary.
Process reliability and controlling the cost of tools
and downtime depend on accurate predictions
of tool life. The models also enable processes
to be altered to maximise speed, quality or reliability. The further development of cutting tool
life models will continue to enable manufacturers to fine-tune their processes and meet their
production goals. Patrick de Vos,
Addition corporate technical manager
training for Seco Tools.
Computer calculations
In production, every machine operator would like to know how long the cutting tool will
last until failure or complete wear. At the same time, operators must use tools throughout
their entire service life. Simulation for calculating tool life includes both simple calculations for
individual operations and and the use of complex models using formulas with many variable
parameters of the cutting process.
Basic models allow you to manually and in a fairly short time to approximately calculate
the tool life. More complex models require more calculations and more time. The best models
allow very accurate tool life calculations. However, if the calculations for complex models take
longer than the actual operations for which the calculations are performed, the economic benefit
from them is questionable. Computer programs for calculations come to the rescue, allowing
you to quickly and extremely accurately process numerous factors and parameters that are
taken into account in complex models for calculating resistance.
An example of such a program is the online program Suggest provided by Seco. The

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