top of page



Find the most optimum cutting conditions to accelerate your production




Every particular combination of the machine, the tool holder and the cutting tool has specific stable speed values that permit the deepest cuts and heaviest metal removal when “dynamically tuned”. This service allows companies to achieve the highest possible material removal rates with longer tool life and spindle life. This approach allows CAM programmers to select the most optimal speed-depth-width-feed to maximize the material removal rate without destructive chatter vibrations.

The action plan is as follows

  • In-field vibration testing
    Terranic engineer performs vibration tests on the machine tools with various tools of interest to determine resonant frequencies of your machine-tool-tool holder set;

  • Tool tuning for optimum machining
    Using state-of-the-art engineering analysis tools, production charts that contain vibration-free cutting conditions to maximize productivity are constructed. The best feeds and speeds together with axial and radial depths of cut are tabulated for CAM engineers;

  • Machining performance testing and verification
    Each cutting condition is tested on your target machines and cutting vibrations are measured to ensure that machining vibrations are within allowable limits.


This 2-day course is designed for test engineers and technicians who conduct modal deflection shape tests; perform experimental modal analysis; and, in general, are involved in acquisition and analysis of vibration data for the development of a modal model. Practical aspects of modal analysis theory, digital signals processing, excitation techniques, and modal parameter estimation are addressed. Upon completion of this course, the attendees will be able to plan, set-up and conduct a modal test from start to finish.


  1. Structural dynamics background

    • Structural dynamics of single and multiple degrees of freedom structures;

    • Physical and modal domains;

    • Frequency response function characteristics

  2. Frequency response measurements

    • Instrumentation;

    • Impact testing;

    • Measurement interpretation;

    • Improving measurement accuracy

  3. Modal parameter estimation

    • Single-mode method;

    • Multiple mode curve fitting; 

  4. Structural analysis

    • Multiple point impact testing;

    • Identification and interpretation of mode shapes;

    • Modal nodes

  5. Machine tool analysis

    • Machine tool specific modes;

    • Industrial case studies

bottom of page