Introduction to Measurement of Cutting Forces in Machining Process
This free online course reason for the cutting force measurement is that it is a good indicator in detecting tool wear.Publisher: NPTEL
CertificationView course modules
This free online course on Introduction to Measurement of Cutting Forces in Machining Process starts with strains and stresses in orthogonal cutting. Stresses give an idea about the relative intensity of the force. Force divided by area is the stress. Sometimes the force may be very high. Stresses are needed for designing. Next we will discuss machining of brittle materials. Single shear plane models and Merchant’s analysis are not suitable for the machining of brittle materials.
Next we will discuss other models of finding out the cutting forces in orthogonal machining. Mechanics of metal cutting consists of study of the machining process and accurate estimation of dynamic cutting forces by the use of suitable analytical models. Different scientists have prepared different models and advanced their own theory and analysis of metal cutting action. There are certain basic concepts used by most of them.
In this course, we will discuss the mechanics of oblique cutting. The mechanics of oblique cutting, including the parasitic forces near the cutting edge, are described. These mechanics make it possible to determine the parasitic forces from measurements of the cutting forces, the cutting ratio and the chip flow angle. Finally we will talk about how we can measure the cutting forces. Measurement of cutting forces during certain cutting conditions is useful for rational and economic design of machine tools.Start Course Now
Introduction to Orthogonal Cutting
Introduction to Orthogonal Cutting - Learning Outcomes
Determination of Stress, Strain, and Strain Rate
Measurement of Shear Angle
Other Analysis for Force Relationships
Introduction to Orthogonal Cutting - Lesson Summary
Oblique Cutting and Measurement of Cutting Forces
Oblique Cutting and Measurement of Cutting Forces - Learning Outcomes
Mechanics of Oblique Cutting
Measurement of Cutting Forces
Oblique Cutting and Measurement of Cutting Forces - Lesson Summary
Upon successful completion of this course, you should be able to:
- Explain why strains and stresses are important in machining operation.
- Discuss how Coulomb’s coefficient of friction may not be applicable.
- Describe the experimental study of orthogonal cutting and some other models of machining.
- Identify the four type of models.
- Discuss the mechanics of oblique cutting and how to visualize it.
- Describe a 3-dimensional picture of the cutting process.
- Identify how we can measure the cutting forces.
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