Study of cutting force and surface roughness in the turning of polytetrafluoroethylene composites with a polycrystalline diamond tool

Fetecău, Cătălin; Stan, Felicia

doi:10.1016/j.measurement.2012.03.030

Cited by 70 publications

(32 citation statements)

References 21 publications

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“…The cutting speed, feed, and cooling was investigated in three level (v c =50-70-90 m/min, f=0.1-0.15-0.2 mm, cooling=6-150-300 bar), while the depth of cut was held at a constant value (a p =2 mm). He installed an empirical model to predict Ra (power input, kW and chip removal rate, cm 3 /min), based on the cutting speed, feed, depth of cut, and the cooling as input parameters. Additionally, optimal cutting parameters were defined for all three levels of cooling.…”

Section: Figure 1 Schematic Diagram Of the Turningmentioning

confidence: 99%

Fuzzy model based surface roughness prediction of fine turning

Tóth-Laufer¹,

Horváth²

2017

FME Transactions

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Section: Figure 1 Schematic Diagram Of the Turningmentioning

confidence: 99%

Fuzzy model based surface roughness prediction of fine turning

Tóth-Laufer¹,

Horváth²

2017

FME Transactions

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“…Specific examples of measuring the main cutting forces during a polytetrafluoroethylene (PTFE) turning experiment using the above-mentioned method are shown by Fetecau and Stan (2012). An interesting aspect of the system is that the only strain gauge used in measuring the force is a strain gauge glued on the pressed side, 22 mm from the tip of the tool.…”

Section: Dynamometers With Strain Gaugesmentioning

confidence: 99%

The design, calibration and adaption of a dynamometer for fine turning

Horváth

Pálinkás

Mátyási

et al. 2017

IJMMM

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Abstract:In cutting research, the determination of the spatial force system of cutting processes is extremely important. Therefore, the forces generated need to be measured with high precision. In this paper, the development of a special three-component dynamometer system is presented for the measurement of small forces (0…100 N) in three directions during fine cutting, with a precision of 0.1 N. The designed dynamometer employs a piezo-electric cell and can easily be mounted on the tool post with only small modifications to the tool holder. The setup was calibrated for sensitivity, static load and range. By using error functions, the relative error in the measurement of force is kept below 1.5%.

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“…Fetecau and Stan [23] turned two types of polytetrafluorethylene (PTFE) based composites: PTFE CG 32-3 (32 % carbon, 3 % graphite) and PTFE GR 15 (15 % regenerated graphite). In their experimental runs, cutting parameters (v c , f, a p ) were changed; furthermore, three polycrystalline diamond tools (PCD) were used having different nose radii.…”

Section: Application Of a Force Model Adapted For The Precise Turningmentioning

confidence: 99%

“…Several researchers were studying the connection between cutting speed and the generated forces. It can be stated that the alteration of cutting speed has a negligible effect on cutting forces in comparison to feed and depth of cut [12], [13], [16], [23], [38] to [40]. Cutting tests were carried out with a constant cutting speed in case of each material.…”

Section: Cutting Studiesmentioning

confidence: 99%

Application of a Force Model Adapted for the Precise Turning of Various Metallic Materials

Horváth

Lukacs

2017

SV-JME

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The cutting force has a significant effect on the geometry and tolerances (e.g. circularity, deviation of circular shape or cylindricity, ovality, conical surfaces) of the workpiece (especially in the case of thin and slim parts), which are key criteria for the products. Moreover, they also affect the tool wear process. Due to the development of technology, the new tool (coatings) and workpiece materials require the exact knowledge of the cutting forces, their investigation during turning is an important field of cutting studies. In the case of turning, the kinetic conditions of which can be seen in Fig. 1, a spatial force system is generated.A new frictional model was constructed by Rusinek et al.[1] in case of orthogonal cutting that took the forces acting on the tool face as well as on the tool flank into consideration. Furthermore, the influence of the tool flank forces on system dynamics was studied.The mathematical modelling of cutting processes can be based on two methods: creating mechanical or phenomenological models. In recent years, several researchers have investigated the machinability of different types of materials, dealt with optimizing, measuring, and calculating cutting forces. The investigation of the machinability of different types of steel is still a basic field of cutting studies.Kulkarni et al.[2] carried out cutting tests on AISI304 austenite stainless steel by using AlTiCrN coated inserts. In their experimental runs, the depth of cut was held at a constant value (a p = 1 mm), the limits of the other cutting parameters were v c = 140 m/min to 320 m/min; f = 0.08 mm to 0.26 mm. The generated forces and the cutting temperature were studied. They said that regarding the force components, the effect of the feed was the most significant; however, the influence of cutting speed was negligible. In contrast, • Novel geometric parameters of the chip cross-section were introduced. Application of a Force Model Adapted for the Precise Turning of Various Metallic Materials• The main values of specific cutting forces characterizing fine turning technology were theoretically calculated.• The applicability of the equations for each material used was investigated by residuals.

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Study of cutting force and surface roughness in the turning of polytetrafluoroethylene composites with a polycrystalline diamond tool

Cited by 70 publications

References 21 publications

Fuzzy model based surface roughness prediction of fine turning

Fuzzy model based surface roughness prediction of fine turning

The design, calibration and adaption of a dynamometer for fine turning

Application of a Force Model Adapted for the Precise Turning of Various Metallic Materials

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