Microscopic mechanism based force prediction in orthogonal cutting of unidirectional CFRP

Qi, Zhenchao; Zhang, Kaifu; Cheng, Hui; Wang, Dong; Meng, Qing

doi:10.1007/s00170-015-6895-7

Cited by 80 publications

(42 citation statements)

References 26 publications

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“…The carbon fibers are responsible for carrying load, while the matrix serves to distribute, hold, and protect the fibers as well as to transmit the load [1][2][3]. This unique material structure contributes to the enhanced mechanical and structural properties and made CFRP an ideal substitute for metals.…”

Section: Introductionmentioning

confidence: 99%

“…Jahromi et al [18] developed an analytical model using elastoplastic matrix behavior to predict cutting forces during orthogonal cutting of unidirectional FRP (90 • ≤ θ < 180 • ) and the authors distinguished three chip formation mechanisms: fiber bending, fiber microbuckling and matrix shearing. And recently, the microscopic mechanism based on force prediction in orthogonal cutting of UD-CFRP was elaborated with analyzing the representative volume element [3]. However, due to the distinctively different material properties, it is difficult to accurately predict accurately the failure and identify the chip formation mechanisms for composites, therefore, the new analysis method is required to better understand the material removal and chip formation processes for CFRP.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Investigation of chip formation and fracture toughness in orthogonal cutting of UD-CFRP

Qin

et al. 2015

Int J Adv Manuf Technol

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Features of chip formation can inform the mechanism of a machining process. In this paper, a series of orthogonal cutting experiments were carried out on unidirectional carbon fiber reinforced polymer (UD-CFRP) under cutting speed of 0.5m/min. The specially designed orthogonal cutting tools and high-speed camera were used in this paper. Two main factors are found to influence the chip morphology, namely the depth of cut (DOC) and the fiber orientation (angle θ ), and the latter of which plays a more dominant role. Based on the investigation of chip formation, a new approach is proposed for predicting fracture toughness of the newly machined surface and the total energy consumption during CFRP orthogonal cutting is introduced as a function of the surface energy of machined surface, the energy consumed to overcome friction , and the energy for chip fracture. The results show that the proportion of energy spent on tool-chip friction is the greatest, and the proportions of energy spent on creating new surface decrease with the increasing of fiber angle.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Investigation of chip formation and fracture toughness in orthogonal cutting of UD-CFRP

Qin

et al. 2015

Int J Adv Manuf Technol

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“…Force prediction in orthogonal cutting of unidirectional CFRP is reported by Qi et al [7]. The force prediction in drilling of metal and composites is shown in papers [8][9][10].…”

Section: Introductionmentioning

confidence: 94%

Cutting forces prediction: The experimental identification of orthogonal cutting coefficients

Popović¹,

Tanović²,

Ehmann³

2017

FME Transaction

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“…For the cutting force prediction model in the CFRP orthogonal cutting, the most published literatures were focused on the equilibrium of cutting force, and three characteristic regions, i.e., chipping region, pressing region, and bouncing region, were analyzed respectively. The cutting force was obtained by resultant force of these three regions [19,20,33]. The energy model presented in this paper is based on the fracture toughness and chip thickness, the precision of the model is similar comparing with the force equilibrium method.…”

Section: Deformation and Debonding Depth Of Fibermentioning

confidence: 99%

“…This model promoted composites analytical research, transforming the composite from an equivalent homogeneous material to a multiphase material. Based on this method, a more precise cutting force model for θ range from 0° to 90° was developed [20]. In this model the supporting effect of surrounding materials was considered, and the deflection differential equation was obtained by the principle of minimum potential energy.…”

Section: Introductionmentioning

confidence: 99%

An energy based force prediction method for UD-CFRP orthogonal machining

Qin

et al. 2017

Composite Structures

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Abstract:The machining of carbon fiber reinforced polymer (CFRP) composite presents a significant challenge to the industry, and a better understanding of machining mechanism is the essential fundament to enhance the machining quality. In this study, a new energy based analytical method was developed to predict the cutting forces in orthogonal machining of unidirectional CFRP with fiber orientations ranging from 0° to 75°. The subsurface damage in cutting was also considered. Thus, the total specific energy for cutting has been estimated along with the energy consumed for forming new surfaces, friction, fracture in chip formation and subsurface debonding. Experiments were conducted to verify the validity of the proposed model.

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Microscopic mechanism based force prediction in orthogonal cutting of unidirectional CFRP

Cited by 80 publications

References 26 publications

Investigation of chip formation and fracture toughness in orthogonal cutting of UD-CFRP

Investigation of chip formation and fracture toughness in orthogonal cutting of UD-CFRP

Cutting forces prediction: The experimental identification of orthogonal cutting coefficients

An energy based force prediction method for UD-CFRP orthogonal machining

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