Vol. 21, No. 3 (2014) 191 CW Hablanian plot 1,2 Hablanian plot Vd/K, P/θtk V m/s d m K m 2 /s P W θ K t m k W/mK Hablanian plot Vd/K V K/d P/θtk P θtk

Similar documents
Study on Application of the cos a Method to Neutron Stress Measurement Toshihiko SASAKI*3 and Yukio HIROSE Department of Materials Science and Enginee

Continuous Cooling Transformation Diagrams for Welding of Mn-Si Type 2H Steels. Harujiro Sekiguchi and Michio Inagaki Synopsis: The authors performed

J. Jpn. Inst. Light Met. 65(6): (2015)

渡辺(2309)_渡辺(2309)

Fig. 1. Schematic drawing of testing system. 71 ( 1 )

土木学会構造工学論文集(2011.3)

Fig. 1 Sampling positions from the ingot. Table 2 Chemical compositions of base metal (%) Fig. 2 (unit: mm) Shape and size of fatigue test specimen. T

The Evaluation on Impact Strength of Structural Elements by Means of Drop Weight Test Elastic Response and Elastic Limit by Hiroshi Maenaka, Member Sh

JFE(和文)No.4-12_下版Gのコピー

ステンレス鋼用高性能冷間鍛造油の開発

０８０１２９７，繊維学会ファイバ１１月号／報文－０１－青山

42 1 Fig. 2. Li 2 B 4 O 7 crystals with 3inches and 4inches in diameter. Fig. 4. Transmission curve of Li 2 B 4 O 7 crystal. Fig. 5. Refractive index

Estimation of Photovoltaic Module Temperature Rise Motonobu Yukawa, Member, Masahisa Asaoka, Non-member (Mitsubishi Electric Corp.) Keigi Takahara, Me


** Department of Materials Science and Engineering, University of California, Los Angeles, CA 90025, USA) Preparation of Magnetopulmbite Type Ferrite

06_学術_関節単純X線画像における_1c_梅木様.indd

474 Nippon Shokuhin Kagaku Kogaku Kaishi Vol. /-, No.3,.1..2* (,**0) 24 Measurement of Deterioration of Frying Oil Using Electrical Properties Yoshio

０８０１３９１，繊維学会ファイバ１２月号／報文－０１－西川

untitled

Jan THE JAPANESE JOURNAL OF ANTIBIOTICS XL-1 Table 1. Outline of administering doses, routes and sampling times *: 4 ml/hr/kg Bacillus subtilis

Natural Convection Heat Transfer in a Horizontal Porous Enclosure with High Porosity Yasuaki SHIINA*4, Kota ISHIKAWA and Makoto HISHIDA Nuclear Applie

16_.....E...._.I.v2006

磁気測定によるオーステンパ ダクタイル鋳鉄の残留オーステナイト定量

浜松医科大学紀要

The Effect of the Circumferential Temperature Change on the Change in the Strain Energy of Carbon Steel during the Rotatory Bending Fatigue Test by Ch

Table 1 Experimental conditions Fig. 1 Belt sanded surface model Table 2 Factor loadings of final varimax criterion 5 6

電子部品はんだ接合部の熱疲労寿命解析


The Evaluation of LBB Behavior and Crack Opening Displacement on Statically Indeterminate Piping System Subjected to Monotonic Load The plastic collap

LAGUNA LAGUNA 10 p Water quality of Lake Kamo, Sado Island, northeast Japan, Katsuaki Kanzo 1, Ni

Vol. 21, No. 2 (2014) W 3 mm SUS304 Ni 650 HV 810 HV Ni Ni Table1 Ni Ni μm SUS mm w 50 mm l 3 mm t 2.2 Fig. 1 XY Fig. 3 Sch

特-7.indd

橡

スポーツ選手における日常的ﾄﾚｰﾆﾝｸﾞが味覚に及ぼす影響について


Optical Lenses CCD Camera Laser Sheet Wind Turbine with med Diffuser Pitot Tube PC Fig.1 Experimental facility. Transparent Diffuser Double Pulsed Nd:

技術研究所　研究所報　No.80

土木学会構造工学論文集(2009.3)


JAMSTEC Rep. Res. Dev., Volume 12, March 2011, 27 _ 35 1,2* Pb 210 Pb 214 Pb MCA 210 Pb MCA MCA 210 Pb 214 Pb * 2

Fig. 1. Relation between magnetron anode current and anode-cathod voltage. Fig. 2. Inverter circuit for driving a magnetron. 448 T. IEE Japan, Vol. 11

) BPA ECN EPICLON N-600 Fig.2 Fig Fig.4 DCPD EPICLON HP-7200 ECN Fig.5 DCPD ECN DCPD 6-28) Table 1 BPA Fig.4 Chemical str

Table 1. Shape and smelting properties of chrome ores as delivered. Table 2. Chemical composition of chrome ores (%). Table 3. Chemical composition of

Fig. 3 Flow diagram of image processing. Black rectangle in the photo indicates the processing area (128 x 32 pixels).

Study on Throw Accuracy for Baseball Pitching Machine with Roller (Study of Seam of Ball and Roller) Shinobu SAKAI*5, Juhachi ODA, Kengo KAWATA and Yu

Time Variation of Earthquake Volume and Energy-Density with Special Reference to Tohnankai and Mikawa Earthquake Akira IKAMi and Kumizi IIDA Departmen

X線分析の進歩36 別刷

Fig. 4. Configuration of fatigue test specimen. Table I. Mechanical property of test materials. Table II. Full scale fatigue test conditions and test

1..FEM FEM 3. 4.

Visual Evaluation of Polka-dot Patterns Yoojin LEE and Nobuko NARUSE * Granduate School of Bunka Women's University, and * Faculty of Fashion Science,

Studies of Foot Form for Footwear Design (Part 9) : Characteristics of the Foot Form of Young and Elder Women Based on their Sizes of Ball Joint Girth

Tetsu-to-Hagane Vol. 87 (2001) No. 5 Table 1. Physical properties of particles. (a) side view (b) front view Fig. 1. Experimental apparatus with semic

A Study on Throw Simulation for Baseball Pitching Machine with Rollers and Its Optimization Shinobu SAKAI*5, Yuichiro KITAGAWA, Ryo KANAI and Juhachi

X X 1. 1 X 2 X 195 3, 4 Ungár modified Williamson-Hall/Warren-Averbach 5-7 modified modified Rietveld Convolutional Multiple Whole Profile CMWP 8 CMWP

UDC : ' : '24' : '24'26' : : A Study of Condition of Pits Formation and Their Fe

obtained for the liniarization, and was found to have a remarkably wider dynamic range (order of approximately 103) than that of conventional screen/f

A Nutritional Study of Anemia in Pregnancy Hematologic Characteristics in Pregnancy (Part 1) Keizo Shiraki, Fumiko Hisaoka Department of Nutrition, Sc

* * 2


国土技術政策総合研究所　研究資料

The copyright of this material is retained by the Information Processing Society of Japan (IPSJ). The material has been made available on the website

藤村氏(論文1).indd

技術研究報告第２６号




untitled

Table 1 Properties of parent coals used Ebenezer, Massel Buluck ; Australia, Datong; China Table 2 Properties of Various chars CY char: Captured char

０４０１４８９‐工芸‐医用画像２２‐１／１２［論文］柳田

24 Depth scaling of binocular stereopsis by observer s own movements

Rate of Oxidation of Liquid Iron by Pure Oxygen Shiro BAN-YA and Jae-Dong SHIM Synopsis: The rate of oxidation of liquid iron by oxygen gas has been s

第６２巻　第１号　平成２４年４月／石こうを用いた木材ペレット

A Study of Effective Application of CG Multimedia Contents for Help of Understandings of the Working Principles of the Internal Combustion Engine (The

Instability of Aerostatic Journal Bearings with Porous Floating Bush at High Speeds Masaaki MIYATAKE *4, Shigeka YOSHIMOTO, Tomoaki CHIBA and Akira CH

Vol. 36, Special Issue, S 3 S 18 (2015) PK Phase I Introduction to Pharmacokinetic Analysis Focus on Phase I Study 1 2 Kazuro Ikawa 1 and Jun Tanaka 2

Vol. 19, No. 3 (2012) 207 Fig. 2 Procedures for minute wiring onto polyimide substrate. Fig. 3 Ink - jet printing apparatus as part of laser sintering

(43) Vol.33, No.6(1977) T-239 MUTUAL DIFFUSION AND CHANGE OF THE FINE STRUCTURE OF WET SPUN ANTI-PILLING ACRYLIC FIBER DURING COAGULATION, DRAWING AND

Fig.2 Optical-microscope image of the Y face-cross sec- tion of the bulk domain structure of a 0.4-mm-thick MgO-LiNbO3 crystal after chemical etching.

Fig. 3 Coordinate system and notation Fig. 1 The hydrodynamic force and wave measured system Fig. 2 Apparatus of model testing

特集_03-07.Q3C


06_学術.indd

untitled

九州大学学術情報リポジトリ Kyushu University Institutional Repository 看護師の勤務体制による睡眠実態についての調査 岩下, 智香九州大学医学部保健学科看護学専攻 出版情報 : 九州大学医学部保健学

パナソニック技報

The Japanese Journal of Health Psychology, 29(S): (2017)

CHEMOTHERAPY APR Fig. 1 Chemical structure of cefotetan (CTT, YM09330)

橡

S-5.indd

1) T. L. Cottrel, A. J. Matheson, Trans. Farad. Soc., 58, 2336(1962). 2) E. N. Chesnokov, V. N. Panfilov, Teor. Eksp. Khimiya, 17, 699(1981). 3) M. Ko


H1-H4_cs5.indd

Mikio Yamamoto: Dynamical Measurement of the E-effect in Iron-Cobalt Alloys. The AE-effect (change in Young's modulus of elasticity with magnetization

Table 1. Main specifications of VAD plant. Fig. 2. Typical operating pattern of low alloy steel.

2007/8 Vol. J90 D No. 8 Stauffer [7] 2 2 I 1 I 2 2 (I 1(x),I 2(x)) 2 [13] I 2 = CI 1 (C >0) (I 1,I 2) (I 1,I 2) Field Monitoring Server

J. Jpn. Soc. Soil Phys. No. 126, p (2014) ECH 2 O 1 2 Calibration of the capacitance type of ECH 2 O soil moisture sensors Shoichi MITSUISHI 1 a


Table 1 Characteristics of the study participants in Imari municipal hospital

Fig. 1 Clinical findings and extent of inflammation area in female urethrocystitis Fig. 2 Classification and distribution of female patients with blad

03_委託テーマ発表資料（その２）（p.89-p.134).pdf

Transcription:

190 : 574-8530 3-1 - 1 431-1202 1955 1 472-0017 7 Prediction of Penetration Depth Using Hablanian Plot Based on Laser Welding Results for Stainless Steel HEYA Manabu, TSUBOI Akihiko, SHAMOTO Hideyasu and TAGAWA Masao Received December 20, 2013 In order to experimentally investigate the prediction accuracy of a penetration depth, we have organized numerous welding results of stainless steels (SUS304) using Hablanian plot. The lasers used were three fiber lasers, one disk laser, four YAG lasers, and one laser diode. These welding data obtained from bead - on - plate welding tests by the laser job shop consisted of about 1,700 data points. The following results were derived from the observations: (1) Hablanian plot results could be fitted using third - degree polynomial fitting but not linear fitting. (2) In the lower range of two dimensionless parameters, the effect of heat conduction into the adjacent material became remarkable. (3) Welding properties expressed by Hablanian plot showed similar properties even under the different welding conditions (such as the type of laser oscillator, welding speed, and power density), except for the focal length of focusing lenses used. Hablanian plot results for the different focal lengths could be expressed by the corresponding third - degree polynomial fitting curves. (4) A penetration depth could be precisely calculated by using the third - degree polynomial fitting curve in comparison with the linear fitting curve. Key words : laser welding, Hablanian plot, dimensionless parameters, penetration depth, prediction, stainless steel 1. Zn Al Ti Ni Co 3 CW

Vol. 21, No. 3 (2014) 191 CW Hablanian plot 1,2 Hablanian plot Vd/K, P/θtk V m/s d m K m 2 /s P W θ K t m k W/mK Hablanian plot Vd/K V K/d P/θtk P θtk 3 Vd/K t P/θtk Vd/K P/θtk 3 P/θtk 100 2 P/θtk 100 P/θtk Vd/K CO 2 3 5 6 Hablanian plot Hablanian plot SUS304 Hablanian plot Hablanian plot 1,700 2. 2.1 Table 1 CW IPG YLR - 5000 5 kw YLR - 2000 2 kw YLR - 300 300 W Trumpf HLD 1001.5 1 kw YAG Trumpf HL353D 350 W HL1003D 1 kw HL4006D 4 kw HLD3504 3.5 kw LD Laserline LDF400-4000 3.6 kw 1,070 nm 1,030 nm YAG 1,064 nm LDF400-4000 967 nm 1,000 nm Table 1 Type of the lasers used and the welding conditions examined. Type of laser Core diameter of fibers μm Fiber laser IPG YLR - 5000 ϕ200 YLR - 2000 ϕ100 YLR - 300 ϕ9 Disk Laser Trumpf HLD1001.5 ϕ150 YAG laser Trumpf HL353D ϕ300 HL1003D ϕ300 HL4006D ϕ600 HLD3504 ϕ400 LD Laserline LDF400-4000 ϕ400 Focal length of Welding Output focusing lens mm speed power W Focal length of m/min collimate lens mm 250-5,000 0.5-30 125/250/375/500 125 100-2,000 0.5-20 125/250/375/500 125 10-300 0.5-20 100/200/300 100 50-1,000 0.5-30 100/150/200 100-350 0.5-10 100/150/200 100-1,000 0.5-10 100/150/200 500-4,000 0.5-30 100/150/200 500-3,500 0.5-30 100/150/200 1,000-3,600 1-5 100/150 100 Spot diameter μm 200/400/600/800 100/200/300/400 9/18/27 75/112.5/150 150/225/300 150/225/300 300/450/600 200/300/400 400/600

192 : 2.2 Table 1 1,700 SUS304 SUS304 7 16.2 W/m K 1,723 K 4.05 10 6 m 2 /s 1 d s µm d core µm f f mm f c mm ff ds = dcore fc 1 3. Fig. 1 5 kw 0.4 mm LD 3.6 kw 0.4 mm Fig. 1 LD Fig. 1 1 mm Hablanian plot Fig. 2 Hablanian plot Fig. 2 Fig. 1 5 kw 3.6 kw LD 0.4 mm P/θtk Vd/K P/θtk Vd/K Fig. 2 1 Hablanian plot P/θtk Vd/K 1 3 Fig. 2 1 mm Fig. 3 Hablanian plot + 3 Poly Line log P/θtk 1.7 log Vd/K 1.0 1 log P/θtk 1.2 log Vd/K 0 1 Hablanian plot 3,5 3 2 3 0.5 mm 0.5 mm Fig. 1 Typical welding results for a 5 - kw - fiber laser and a 3.6 - kw - LD. Fig. 2 Relation between welding bead shapes and Hablanian plot results for the welding data as shown in Fig. 1 with a spot diameter of 0.4 mm.

Vol. 21, No. 3 (2014) 193 Fig. 3 Hablanian plot results for all welding data. Fig. 4 Estimation of the slopes of the fitting curve for Hablanian plot results in the lower P/θtk and Vd/K ranges. 0.5 mm y = 7.103 + 10.38x 4.548x 2 + 0.7311x 3 y = 2.230 + 1.891x y = log Vd/K x = log P/θtk 4. 2 3 4.1 P/θtk Vd/K Hablanian plot 1 1,3 Fig. 4 a1 2 3 3.36 4 a0 a1=3.36 y 3.36 P/θtk Vd/K P/θtk Vd/ K 4 C P 1 Vd = itk S 1.096#10-4 K X -3.36 +C 4 3 20 kw 1.8 log P/θtk 1.7 log Vd/K 1.2 log P/θtk 1.2 log Vd/K 0 3 1.8 3.36 Hablanian plot 3 P/θtk Vd/K 1 4.2 Fig. 5 6 7 Fig. 3 YAG YAG Disk LD 3 4.3 Fig. 8 Fig. 3 Hablanian plot Fig. 8 a P/θtk Vd/K Fig. 8 b P/θtk Vd/K Fig. 8 f100 100 mm 3 Fig. 3 Fig. 8 a 100 mm 125, 150, 200 mm 250 mm 3 NA

194 : Fig. 5 Hablanian plot results for fiber lasers. Fig. 8 Hablanian plot results for the focal lengths of focusing lenses used in the a lower and b higher P/θtk and Vd/K ranges. Fig. 6 Hablanian plot results for YAG lasers. Fig. 9 Hablanian plot results for power density. Fig. 7 Hablanian plot results for various lasers. Fig. 8 b 150 mm 500 mm f = 150, 500 mm Fig. 8 a f300 10 300 W µm 1 mm Fig. 9 10 Fig. 3 Hablanian plot 5 10 5 W/cm 2 5 10 5 W/cm 2 1 10 6 W/cm 2 1 10 6 W/cm 2 5 10 6 W/cm 2 5 10 6 W/cm 2 1 10 7 W/cm 2 1 10 7 W/cm 2 5 10 7 W/cm 2 5 10 7 W/cm 2 1 10 8 W/cm 2 1 10 8 W/cm 2

Vol. 21, No. 3 (2014) 195 Fig. 10 Hablanian plot results for welding speed. Fig. 11 Prediction of a penetration depth using a polynomial - fitting and b linear - fitting curves. 2 m/min 2 m/min 5 m/min 6 m/min 10 m/min 15 m/min 20 m/min 25 m/min 30 m/min 3 Fig. 5 Fig. 6 Fig. 7 4.4 Fig. 11 Hablanian plot t cal t mea Fig. 11 a b Fig. 3 3 Polynomial Line t cal t mea Polynomial Line 5 6 t cal Fig. 11 P tcal = 10 -R1.173+0.3358a+0.1379a 2 +0.05342a 3 ik W 5 Fig. 12 Dependence of Vd/K on a prediction error using a polynomial - fitting and b linear - fitting curves. P tcal = 10 -R1.236+0.4608a ik W 6 a = log Vd/K Fig. 12 a b Polynomial Line Vd/K 0 log Vd/K 1 1 Fig. 3 Vd/K 3 1.50±17.7% 4.65±34.6% Hablanian plot Hablanian plot mm mm 3

196 : Fig. 8 3 5. Hablanian plot SUS304 Hablanian plot 3 1 YAG 4 LD 1 1,700 1 3 2 log P/θtk 1.7 log Vd/K 1.0 1 3 log P/θtk 1.2 log Vd/K 0 1 4 3 3 5 3 Hablanian plot Fig. 8 1 Hablanian, M.H. : A Correlation of Welding Variables, Proc. of 4 th Symp. Electron Beam Technology, 1962, 262. 2 Lowry, J.F., Fink, J.H. and Schumacher, B.W. : A Major Advance in High - Power Electron - Beam Welding in Air, J. Appl. Phys., 47, 1976, 95. 3 Locke, E.V., Hoag, E.D. and Helia, R.A. : Deep Penetration Welding with High - Power CO 2 Lasers, IEEE J. Quantum Electron., 8, 1972, 132. 4 Baardsen, E.L. and Schmatz, D.J. : High - Speed Welding of Sheet Steel with a Carbon Dioxide Laser, Proc. of IEEE Conf. Laser Eng. Appl., Washington D.C., May, 1971. 5 Metzbwer, E.A. : Penetration Depth in Laser Beam Welding, Welding Rerearch, 1993, 403 - s. 6 Quintino, L., Costa, A., Miranda, R. and Yapp, D. : Welding with High - Power Fiber Lasers A Preliminary Study, Material & Design, 28, 2007, 1231. 7 Washko, S.D. and Aggen, G. : Metals Handbook, ASM International, 1990, 841.

2024 © docsplayer.net プライバシー | 利用規約 | フィードバック