Development of a Cutting Tool for Composites With Thermoplastic Matrix

Mašek, Petr; Zeman, Pavel; Kolář, Petr

doi:10.17973/mmsj.2013_10_201312

Cited by 8 publications

(6 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Inside conventional processes, such as drilling or milling, wear caused to the cutting edges increases the final costs and reduces the efficiency of these processes. Processes such as milling generate a smooth and clean surface with Rz values close to 9 µm and Ra values close to 2 µm [12,13]. This is in line with the results obtained in the conventional machining of thermoset composite materials, where results below 3.2 µm are required due to aeronautical tolerances [14].…”

Section: Introductionsupporting

confidence: 86%

“…Nevertheless, although very low values are obtained, the machining temperatures deteriorate the thermoplastic matrix and cause delaminations in regions in which the reinforcement is left unprotected [12]. In addition, the fact of machining two materials of different machinability requires the use of specific cutting geometries and complex machining strategies with change of cutting parameters in the interlayer.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

On the Surface Quality of CFRTP/Steel Hybrid Structures Machined by AWJM

Bañon

Simonet²,

Sambruno

et al. 2020

Metals

View full text Add to dashboard Cite

The joining of dissimilar materials in a hybrid structure is a line of research of great interest at present. Nevertheless, the machining of materials with different machinability requires specific processes capable of minimizing defectology in both materials and achieving a correct surface finish in terms of functional performance. In this article, abrasive water jet machining of a hybrid carbon fiber-reinforced thermoplastics (CFRTP)/Steel structure and the generated surface finish are studied. A parametric study in two stacking configurations (CFRTP/Steel and Steel/CFRTP) has been established in order to determine the range of cutting parameters that generates the lowest values in terms of arithmetic mean roughness (Ra) and maximum profile height (Rz). The percentage contribution of each cutting parameter has been identified through an ANOVA analysis for each material and stacking configuration. A combination of 420 MPa hydraulic pressure with an abrasive mass flow of 385 g/min and a travel speed of 50 mm/min offers the lowest Ra and Rz values in the CFRTP/Steel configuration. The stacking order is a determining factor, obtaining a better surface quality in a CFRTP/Steel stack. Finally, a series of contour diagrams relating surface quality to machining conditions have been obtained.

show abstract

Section: Introductionsupporting

confidence: 86%

Section: Introductionmentioning

confidence: 99%

On the Surface Quality of CFRTP/Steel Hybrid Structures Machined by AWJM

Bañon

Simonet²,

Sambruno

et al. 2020

Metals

View full text Add to dashboard Cite

show abstract

“…Only CVD diamond-coated tools were used in this block of experiments. This combination of cutting geometry and cutting tool material minimised delamination and cutting forces [30]. A combination of fine-grained cemented carbide with CVD diamond offers simple adjusting of geometry and relatively long tool life in the cut.…”

Section: Influence Of Cutting Edge Geometry Vs Cutting Conditionsmentioning

confidence: 99%

“…Opinions on suitability of this geometry vary. However, a double-helix geometry of the cutting tool was recommended to prevent delamination [30]. This paper is focused on the edge trimming of thin sheets of polyphenylene sulphide with 4H satin woven carbon fibre T300B reinforcement (C/PPS).…”

Section: Introductionmentioning

confidence: 99%

Edge trimming of C/PPS plates

Mašek

Zeman

Kolář

et al. 2018

Int J Adv Manuf Technol

Self Cite

View full text Add to dashboard Cite

A main requirement in the field of polymer composites milling with fibre reinforcement is to machine with high quality in one operation (without delamination or burrs). That requires precise selection of cutting tool geometry and cutting conditions. Fibrereinforced plastics (FRPs) are difficult-to-machine materials due to high abrasivity, relatively low melting point of polymeric matrices and inclination to delamination or large burr formation. This study investigates the main factors influencing the forces, temperature and surface quality in terms of the cutting conditions through ANOVA testing. Machining during this experiment was performed with a polycrystalline diamond (PCD) end mill. Next, the strongest factor with various double-helix cutting tool geometry was compared. The geometric model of the cutting forces was created based on previous measurements as well as a general empirical model of cutting forces, temperature on the machined surface and average delamination length for C/PPS material.

show abstract

“…10 Compression end mills with two sets of left-hand and right-hand flutes limit the delamination and burrs on the cut edges. 11 Furthermore, the machining of flexible parts by multi-tooth end mills eliminates the cutting force along the Z-axis, thereby reducing the deflection and vibration of the part. 8 In-between are helical mills with a chip-breaker geometry 12 that shears fibers and shortens chips with the simultaneous reduction of vibrations.…”

Section: Introductionmentioning

confidence: 99%

Cutting-tool performance in the end milling of carbon-fiber-reinforced plastics

Bílek¹,

Rusnáková²,

Žaludek³

2016

Mater. Tehnol.

View full text Add to dashboard Cite

Carbon-fiber-reinforced plastics (CFRPs) are no longer the exclusive domain of aerospace industries and nowadays find more applications in the automotive and consumer industries. The growing volume of these materials increases the need for their efficient machining. However, the machinability of CFRPs is a rather complex task due to the heterogeneity and the considerable number of parameters influencing the cutting process. The cutting tool has long been recognized as an important factor influencing both surface quality and dimensional accuracy. Hence, in this paper, tool performance is investigated in the end milling of CFRPs. The effect of tool geometry and coatings on the cutting forces, dimensional accuracy and surface quality were experimentally examined for side and slot milling. Keywords: CFRP, composites, end mill, surface quality, cutting forces Plastika, oja~ana z ogljikovimi vlakni (CFRP), dosedaj ekskluzivna domena letalske industrije, se v zadnjem~asu bolj pogosto uporablja tudi v strojni{tvu, v avtomobilski industriji in v potro{ni{tvu. Z nara{~anjem uporabe teh materialov, nara{~a tudi potreba po u~inkoviti strojni obdelavi. Vendar pa je strojna obdelava CFRP-a precej kompleksna naloga zaradi heterogenosti in {tevilnih parametrov, ki vplivajo na proces rezanja. @e dolgo je znano, da je rezilno orodje pomemben faktor, ki vpliva na kvaliteto povr{ine in dimenzijsko natan~nost. Zato je v~lanku preiskovana zmogljivost orodja pri rezkanju plastike, oja~ane z ogljikovimi vlakni. Pri bo~nem in utorovnem rezkanju je bil preiskovan vpliv geometrije orodja in povr{inske prevleke na sile rezanja, dimenzijsko zanesljivost in na kvaliteto povr{ine.

show abstract

Development of a Cutting Tool for Composites With Thermoplastic Matrix

Cited by 8 publications

References 4 publications

On the Surface Quality of CFRTP/Steel Hybrid Structures Machined by AWJM

On the Surface Quality of CFRTP/Steel Hybrid Structures Machined by AWJM

Edge trimming of C/PPS plates

Cutting-tool performance in the end milling of carbon-fiber-reinforced plastics

Contact Info

Product

Resources

About