Cutting forces when milling screw surfaces

Polyetheretherketone (PEEK) and its composites are commonly used in the industry. Materials with PEEK are widely used in aeronautical, automotive, mechanical, medical, robotic and biomechanical applications due to superior properties, such as high-temperature work, better chemical resistance, lightweight, good absorbance of energy and high strength. To enhance the tribological and mechanical properties of unreinforced PEEK, short fibers are added to the matrix. In this study, Artificial Neural Networks (ANNs) and the Adaptive-Neural Fuzzy Inference System (ANFIS) are employed to predict the cutting forces during the machining operation of unreinforced and reinforced PEEK with30 v/v% carbon fiber and 30 v/v% glass fiber machining. The cutting speed, feed rate, material type, and cutting tools are defined as input parameters, and the cutting force is defined as the system output. The experimental results and test results that are predicted using the ANN and ANFIS models are compared in terms of the coefficient of determination ( R2) and mean absolute percentage error. The test results reveal that the ANFIS and ANN models provide good prediction accuracy and are convenient for predicting the cutting forces in the turning operation of PEEK.

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Correction to: Modeling of cutting forces in trochoidal milling with respect to wear-dependent topographic changes

Production Engineering ◽

10.1007/s11740-021-01065-z ◽

2021 ◽

Author(s):

Jim A. Bergmann ◽

Nils Potthoff ◽

Tobias Rickhoff ◽

Petra Wiederkehr

Keyword(s):

Cutting Forces ◽

Trochoidal Milling

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Modeling of cutting forces in helical milling of unidirectional CFRP considering carbon fiber fracture

Journal of Manufacturing Processes ◽

10.1016/j.jmapro.2021.06.058 ◽

2021 ◽

Vol 68 ◽

pp. 1495-1508

Author(s):

Shun Zhang ◽

Feng Jiao ◽

Xue Wang ◽

Ying Niu

Keyword(s):

Carbon Fiber ◽

Cutting Forces ◽

Helical Milling ◽

Fiber Fracture

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Towards Dry Machining of Titanium-Based Alloys: A New Approach Using an Oxygen-Free Environment

Metals ◽

10.3390/met10091161 ◽

2020 ◽

Vol 10 (9) ◽

pp. 1161

Author(s):

Hans Jürgen Maier ◽

Sebastian Herbst ◽

Berend Denkena ◽

Marc-André Dittrich ◽

Florian Schaper ◽

...

Keyword(s):

Titanium Alloy ◽

Wear Mechanism ◽

Chip Formation ◽

Cutting Forces ◽

High Vacuum ◽

Argon Atmosphere ◽

Dry Machining ◽

New Approach ◽

Underlying Mechanisms ◽

Free Environment

In the current study, the potential of dry machining of the titanium alloy Ti-6Al-4V with uncoated tungsten carbide solid endmills was explored. It is demonstrated that tribo-oxidation is the dominant wear mechanism, which can be suppressed by milling in an extreme high vacuum adequate (XHV) environment. The latter was realized by using a silane-doped argon atmosphere. In the XHV environment, titanium adhesion on the tool was substantially less pronounced as compared to reference machining experiments conducted in air. This goes hand in hand with lower cutting forces in the XHV environment and corresponding changes in chip formation. The underlying mechanisms and the ramifications with respect to application of this approach to dry machining of other metals are discussed.

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