Enhancement of low power CO2 laser cutting process for injection molded polycarbonate

Moradi, Mahmoud; Mehrabi, Omid; Azdast, Taher; Benyounis, K.Y.

doi:10.1016/j.optlastec.2017.05.022

Cited by 70 publications

(37 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The purpose of this method is to find a logical mathematical relationship between input and output variables. When all autonomous variables can be measured during a study, the response surface is to be asserted as a function by Equation (1) [43][44][45][46]:…”

Section: Experimental Design and Methodologymentioning

confidence: 99%

Post-Processing of FDM 3D-Printed Polylactic Acid Parts by Laser Beam Cutting

et al. 2020

Self Cite

View full text Add to dashboard Cite

In this paper, the post-processing of 3D-printed poly lactic acid (PLA) parts is investigated. Workpieces are manufactured by fused deposition modeling (FDM) 3D printing, while they may have defects in some areas such as edges. A post-processing is introduced here for 3D-printed samples by low power CO2 laser. The thickness of the FDM samples are 3.2 mm and printed by optimum conditions. Effects of process parameters such as focal plane position (−3.2–3.2 mm), laser power (20–40 W), and laser cutting speed (1–13 mm/s) are examined based on the design of experiments (DOE). Geometrical features of the kerf; top and bottom kerf; taper; ratio of top to the bottom kerf are considered as output responses. An analysis of the experimental results by statistical software is conducted to survey the effects of process parameters and to obtain regression equations. By optimizing of the laser cutting process; an appropriate kerf quality is obtained and also optimum input parameters are suggested. Experimental verification tests show a good agreement between empirical results and statistical predictions. The best optimum sample with 1.19 mm/s cutting speed, 36.49 W power and 0.53 mm focal plane position shows excellent physical features after the laser cutting process when 276.9 μm top and 261.5 μm bottom kerf width is cut by laser.

show abstract

Section: Experimental Design and Methodologymentioning

confidence: 99%

Post-Processing of FDM 3D-Printed Polylactic Acid Parts by Laser Beam Cutting

et al. 2020

Self Cite

View full text Add to dashboard Cite

show abstract

“…Terkait parameter multi respon tersebut beberapa penelitian telah ditujukan untuk material plat logam (metal sheet) [9], logam yang lebih spesifik berjenis stainless steel [10], dan bahkan lebih spesifik lagi berdasarkan ketebalan stainless steel tersebut [11]. Selain logam, material lain dalam penelitian terkait optimasi proses cutting adalah kayu [12], plastik polimer [13], bahan polimer yang lebih spesifik yaitu polikarbonat [14], dan bahkan material komposit seperti Al6061/SiCp/Al2O3 [15].…”

Section: Tinjauan Pustaka a Mesin Laser Cuttingunclassified

Optimasi Setup Proses Engraving CNC Laser Cutting Material Akrilik Menggunakan Simplex Centroid Design dan Optimasi Respon

Wijaya

Izzhati

2019

DINAREK

View full text Add to dashboard Cite

<p>Artikel ini membahas penelitian terkait optimasi komposisi level setup proses engraving mesin CNC laser cutting tipe G-Weike LC6090 terhadap material akrilik. Penelitian ini dibutuhkan karena tidak adanya acuan tabulasi level setup proses engraving pada mesin tersebut, sehingga setup proses hanya berdasarkan perkiraan. Hal ini memunculkan masalah terkait kualitas hasil proses, efisiensi permesinan, dan masa pakai tabung CO2 penghasil laser. Artikel ini memperlihatkan hasil optimasi komposisi level setup optimal proses engraving menggunakan Design of Experiment (DoE) dengan metode Simplex Centroid Design (SCD) dan optimasi multi respon. Faktor komposisi setup dalam penelitian ini adalah kecepatan proses, kekuatan, dan interval pemakanan laser. Sedangkan parameter multi respon yang diukur adalah waktu proses, depth, dan roughness. Model formulasi matematis akan dihasilkan dari setiap parameter responnya, kemudian dilakukan optimasi respon tersebut berdasarkan depth yang diinginkan. Hasil penelitian menunjukkan terdapat trade off dari parameter multi responnya, serta diperoleh komposisi level setup optimal untuk batas depth (p) 0,3 mm ≥ p ≤ 1,34 mm.</p>

show abstract

“…In laser cutting of a single phase plastic (e.g. Te on), generally, processing parameters and laser conditions in uence the cutting performance particularly cutting e ciency, cut edge quality, and kerf width and there are many published researches which present a framework of cutting parameters for a particular polymer [7][8][9]. However, in laser cutting of composite polymers which are reinforced by high re ective metal particles (e.g.…”

Section: Introductionmentioning

confidence: 99%

CO2 laser cutting of glass-fibre-reinforced unsaturated polyester (GFRUP): an experimental investigation

Rejani

Hashemzadeh

2021

Preprint

View full text Add to dashboard Cite

Glass-fibre reinforced unsaturated polyester (GFRUP) is one the thermoset composites that has many applications in manufacturing productions. CO2 laser cutting of this composite has been significantly developed in industries. It is believed that the presence of glass fibre network in the matrix of thermoset affect the laser cutting process of this composite. In addition, the three-dimensional matrix of monomers along with carbon atoms in the atomic network's joints can also influence the laser cutting parameters. The aim of this research is to experimentally investigate the effect of these complicated structural properties on the CO2 laser cutting of GFRUP sheets. First, the maximum cutting speeds, in which the cut occurs, was obtained for various sheet thicknesses using a variety of powers. The kerf width was measured with using an optical stereo-microscope. Then, the laser cutting mechanism was discussed using the SEM of the cut edge surfaces. The volume cutting efficiency was also studied. The results indicate that the upper kerf width is wider than the lower kerf width. The upper kerf width is larger than the spot size of 0.3 mm. The chaotic striations on the cut edge surface are the re-solidified glass fibres and can be seen as something like stalactites which are in black due to the carbon dust. Opening of the lower kerf due to the shrinkage of the re-solidified glass fibre is reported as a phenomenon. The cutting efficiency decreases as sheet thickness increases.

show abstract

Enhancement of low power CO2 laser cutting process for injection molded polycarbonate

Cited by 70 publications

References 24 publications

Post-Processing of FDM 3D-Printed Polylactic Acid Parts by Laser Beam Cutting

Post-Processing of FDM 3D-Printed Polylactic Acid Parts by Laser Beam Cutting

Optimasi Setup Proses Engraving CNC Laser Cutting Material Akrilik Menggunakan Simplex Centroid Design dan Optimasi Respon

CO2 laser cutting of glass-fibre-reinforced unsaturated polyester (GFRUP): an experimental investigation

Contact Info

Product

Resources

About