Hole Quality Assessment in Drilling of Glass Microballoon/Epoxy Syntactic Foams

Ashrith, H. S.; Doddamani, Mrityunjay; Gaitonde, V. N.; Gupta, Nïkhil

doi:10.1007/s11837-018-2925-x

Cited by 14 publications

(5 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On the other side, a maximum average thrust force value of 136 N was obtained when the cutting speed of 25 m×min −1 and feed rate of 0.2 mm×rev −1 . This result can be related to the workpiece‐tool contact length like other studies in the literature [29, 30]. When the feed increases, the contact area between the sample and tool increases which results in the increased thrust force.…”

Section: Resultssupporting

confidence: 62%

“…This result is a promising argument considering the complex and random pore structures of the expanded glass granules. What's more, if the cutting variables are selected correctly, cellular glass particles can be got ready for assembly as easy as possible as perfect spherical hollow particle‐filled foams tried in scientific works [32, 41]. If the high cost and difficult manufacturing process of micro‐scale hollow glass spheres are taken into account, relatively low‐cost expanded glass spheres used in this work are predicted to attract researchers and production engineers in the near future.…”

Section: Resultsmentioning

confidence: 96%

“…From this point of view, the damage factor at the exit side was calculated by using the commonly preferred approach, Equation 2 . The schematic view of the damage factor variables can be found, Figure 9 [39–41]. D max and D values were measured through Nikon SMZ 800 stereo microscope and DpxView‐Pro software.

\vcenter{\openup.5em\halign{$\displaystyle{#}$\cr {F}_{d-Exit}={\rm \ }{{{D}_{max}}\over{D}}\hfill\cr}}

…”

Section: Resultsmentioning

confidence: 99%

“…Maximum and minimum specific cutting coefficient values of 360.15 MPa and 114.54 MPa were calculated for the feed rate of 0.05 mm×rev −1 and the cutting speed of 100 m×min −1 and, the feed rate of 0.2 mm×rev −1 and cutting speed of 50 m×min −1 respectively. If the previous scientific investigations are considered, the effects of feed rate and cutting speed on the specific cutting coefficient of glass micro balloons reinforced epoxy syntactic foams with various densities were analyzed and a diminishment up to 40 MPa in specific cutting coefficient value was ascertained as a result of three times feed escalation [30]. This decremental tendency is also discerned depending on climbing cutting speed levels [30].…”

Section: Resultsmentioning

confidence: 99%

“…If the previous scientific investigations are considered, the effects of feed rate and cutting speed on the specific cutting coefficient of glass micro balloons reinforced epoxy syntactic foams with various densities were analyzed and a diminishment up to 40 MPa in specific cutting coefficient value was ascertained as a result of three times feed escalation [30]. This decremental tendency is also discerned depending on climbing cutting speed levels [30]. In another study aiming to comprehend the effects of machining factors on specific cutting coefficients of syntactic foams, the adverse interaction between the feed rates and coefficient values was revealed [32].…”

Section: Resultsmentioning

confidence: 99%

See 4 more Smart Citations

An experimental examination of the dry drilling machinability features of cellular glass‐filled new‐generation metallic composite foams

Bolat,

Ergene,

Akgun

et al. 2023

Materialwissenschaft Werkst

View full text Add to dashboard Cite

On the way to the real industrial applications of the metal matrix composite foams, the machining issue is highly critical in terms of dimensional accuracy, surface quality, and design diversity. Therefore, especially for lightweight automotive and aerospace components, the drilling machinability properties of cellular glass‐added aluminum composite foams were examined in this paper, and this is the first initiative in the literature specific to millimeter‐scale glass and aluminum‐zinc matrix combination. To comprehend the drilling properties, the outputs of thrust force, cylindricity, material removal rate, specific cutting coefficient, circularity error, damage factor, surface roughness, and chip formation were measured elaboratively. The results showed that cylindricity and damage factor of foams elevated with the increased feed rates (from 0.05 mm×rev−1 to 0.2 mm×rev−1) and cutting speeds (from 25 m×min−1 to 100 m×min−1). Maximum thrust force value reached up to 150 N for 0.2 mm×rev−1 feed and 25 m×min−1 cutting speed. Besides, specific cutting coefficient values ranged between 360 MPa and 114 MPa. The highest surface roughness of 58.3 μm was obtained with the lowest cutting speed of 25 m×min−1, and the long/continuous chip structure converted into a separate/short structure based on rising feed and cutting speeds.

show abstract

Section: Resultssupporting

confidence: 62%

Section: Resultsmentioning

confidence: 96%