Improvement of cutting performance for thick stainless steel plates by step-like cutting speed increase in high-power fiber laser cutting

Seon, Sangwoo; Shin, Jae Sung; Oh, Seung-Min; Park, Hyunmin; Chung, Chin-Man; Kim, Taek‐Soo; Lee, Lim; Lee, Jong‐Hwan

doi:10.1016/j.optlastec.2018.01.054

Cited by 17 publications

(6 citation statements)

References 10 publications

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“…Untuk proses cutting material menggunakan CNC laser cutting, penelitian yang telah dilakukan adalah menggunakan teknik DoE dalam melakukan optimasi [7], selanjutnya penelitian menggunakan DoE untuk menentukan komposisi faktor optimal dalam proses cutting berdasarkan parameter multi respon [8]. 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

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<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>

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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

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“…Az ausztenites korrózióálló acélok lézersugaras vágása bizonyos vastagság fölött nem teljesen kidolgozott. Az utóbbi években a szállézerek teljesítményének erőteljes növelésével sikerült nagy vastagságú korrózióálló acéllemezt elvágni, Seon és társai 9 kW-os szállézerrel 60 mm-es vastagságot sikerült elvágni, de a felület nagyon salakos [1]. Külön problémát jelent a vastag acélok ívelt vágása [2,3].…”

Section: Bevezetésunclassified

Ausztenites korrózióálló acélok lézersugaras vágása

Halász¹,

Fábián²,

Kuti³

2019

AMT

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Nowadays, laser technology has become an essential part of our lives. The great advantage of lasers used in materials processing is that they provide very precise, quick machining and low heat input. However, all machining requires unique parameters. These parameters are for example: Power, wavelength, cutting speed and focus line distance. Using optical microscopes and electron microscopes to examine the cutting surfaces of the CO 2 laser, we can see that the cut has high quality surface (cutting 3,25 mm thick plates), but holes made with a solid-state laser have micro-cracks on the inner side. These cracks are not acceptable to the customers.

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“…It is known that the laser cutting of thick work-pieces provides considerable advantages over the conventional techniques owing to the short processing time and high precision operation. In addition, the flexibility of fiber lasers provides a fast and affordable way to accomplish larger work stations and more complex applications [ 16 , 17 ]. Nowadays, pipe sheet cutting systems equipped with a high-power fiber laser are available due to their high efficiency and reduced maintenance costs.…”

Section: Introductionmentioning

confidence: 99%

Hybrid Dissection for Neutron Tube Shell via Continuous-Wave Laser and Ultra-Short Pulse Laser

et al. 2022

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The sealed neutron tube shell dissection process utilizing the traditional lathe turning method suffers from low efficiency and high cost due to the frequency of replacement of the diamond knife. In this study, a hybrid dissection method is introduced by combining the continuous-wave (CW) laser for efficient tangential groove production with an ultra-short pulse laser for delamination scanning removal. In this method, a high-power CW laser is firstly employed to make a tapered groove on the shell’s surface, and then a femtosecond pulse laser is used to micromachine the groove in order to obtain a cutting kerf. The thermal field was theoretically investigated in a finite element model. The simulation results show that the width of the area of temperature exceeding 100 °C is 1.9 mm and 0.4 mm with rotating speeds of 20 rad/s and 60 rad/s, respectively. In addition, a 2 mm deep slot in the 25 mm diameter tube was successfully produced in 1 min by a kilowatt fiber laser, and a 500-femtosecond pulse laser was employed to cut a plate with a material removal rate of 0.2 mm3/min. By using the hybrid method, the cutting efficiency was improved about 49 times compared to the femtosecond laser cutting. According to the simulation and experimental results, this method provides a high-efficiency and non-thermal cutting technique for reclaimed metallic neutron tube shells with millimeter-level thick walls, which has the advantages of non-contact, minimal thermal diffusion, and no effect of molten slag. It is indicated that the hybrid dissection method not only offers a new solution for thick neutron tube shell cutting but also extends the application of laser cutting techniques.

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Improvement of cutting performance for thick stainless steel plates by step-like cutting speed increase in high-power fiber laser cutting

Cited by 17 publications

References 10 publications

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

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

Ausztenites korrózióálló acélok lézersugaras vágása

Hybrid Dissection for Neutron Tube Shell via Continuous-Wave Laser and Ultra-Short Pulse Laser

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