Machining Performance of High-rate Facemilling Cutters with SWC Application Tetsutaro HOSHI, Itsuro BABA and Tadai MATSUMOTO To develop milling tools

Similar documents
01.eps

1 2 3

NEW AquaREVO Drills Stub/Regular AQRVDS AQRVDR

F3000 SERIES FEATURES F3042 F3038 F F3052 F

アクアEXオイルホールロング(CC2015).indd

Thread Mill Series

PRODUCT INFORMATION Highly Efficient FXS Carbide Ball Nose End Mills Vol. 3 PAT.P. FXS-EBT FXS-LS-EBT FXS-PC-EBT FXS-EBM

Features Features FeaturesThread milling cutters 1

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

Thread Milling Cutter Series

高硬度金型(60HRC) の高速切削

Tornado Series selection SW TiCN HSS Co FAX VL PM

メタルバンドソー

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

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

KOMET KUB K2® 小径対応ヘッド交換式ドリル


LINE UP High Speed Carbide End Mills for Aluminum Alloys AERO Series AERO-EXTL For finishing 3-flute, extra long type see p.10 AERO-ETL For finishing

High performance PM-HSS Drills Powder HSS with SG Coating and the tool life is 2- times of conventional coated drills. Extremely precise positioning a

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

SGドリルシリーズ_CC2015.indd

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

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

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

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

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

特-7.indd

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


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

OSG Product Catalogue VOL-2.pdf

電子部品はんだ接合部の熱疲労寿命解析

渡辺(2309)_渡辺(2309)

untitled

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

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

Fig. 1 Hydrostatic Thrust Bearing Fig. 2 Point loading of elastic half-space

Huawei G6-L22 QSG-V100R001_02

<8B5A8F70985F95B632936EE7B22E696E6464>

Photo. 1. Scale banding in roughing mill work roll. Photo. 2. Etched micro-structure of alloyed grain iron roll. Photo. 3. Etched micro-structure of a

PRODUCT NEWS No. 405 NEW PRODUCT 45 SSE45 series 90 SSD90 SSE45 45 JCTMA ECO PRODUCT SSD90 90 JCTMA ECO PRODUCT

第七回道路橋床版シンポジウム論文報告集 Experimental Study on Fatigue Resistance of RC Slab with UFC Panel for Wheel Running Fatique Test * ** ** *** **** Kazuhiko Minaku


Fig. 1 KAMOME50-2 Table 1 Principal dimensions Fig.2 Configuration of the hydrofoils (Endurance and sprint foil) Fig. 3 Schematic view of the vortex l

Table 1. Reluctance equalization design. Fig. 2. Voltage vector of LSynRM. Fig. 4. Analytical model. Table 2. Specifications of analytical models. Fig

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

JFE(和文)No.4-12_下版Gのコピー


I N S T R U M E N T A T I O N & E L E C T R I C A L E Q U I P M E N T Pressure-resistant gasket type retreat method effective bulk compressibility Fro

Introduction Purpose This training course describes the configuration and session features of the High-performance Embedded Workshop (HEW), a key tool

alternating current component and two transient components. Both transient components are direct currents at starting of the motor and are sinusoidal


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

March 8, 2011 March 8,

I N S T R U M E N T A T I O N & E L E C T R I C A L E Q U I P M E N T STW Symbol Symbol otary switch) 05 otary switch Symbol angle of notch 181

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

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


52-2.indb

Fig, 1. Waveform of the short-circuit current peculiar to a metal. Fig. 2. Waveform of arc short-circuit current. 398 T. IEE Japan, Vol. 113-B, No. 4,

実船における YP4 鋼の使用状況とその実績評価 Application ratio of high tensile steels (w%) Ratio of each type of steel (w%) R & D for TMCP Technology R & D for TMCP Steel

土木学会構造工学論文集(2011.3)

アクアドリルEX改定.indd

HIS-CCBASEver2

H1-H4

Manufacturing Processes Machining Casting Process Welding, Bonding and Cutting Plastic Working Cutting Process Abrasive Machining

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

(1 ) (2 ) Table 1. Details of each bar group sheared simultaneously (major shearing unit). 208

00_1512_SLIMLINE_BOOK.indb

On the Wireless Beam of Short Electric Waves. (VII) (A New Electric Wave Projector.) By S. UDA, Member (Tohoku Imperial University.) Abstract. A new e

Fig. 1 Schematic construction of a PWS vehicle Fig. 2 Main power circuit of an inverter system for two motors drive

Table 1. Assumed performance of a water electrol ysis plant. Fig. 1. Structure of a proposed power generation system utilizing waste heat from factori


０４０１４８９‐工芸‐医用画像２２‐１／１２［論文］柳田

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

P036-P041

Direct Motor Drive Lead Screws / Resin Lead Screw type RM / RM RM Resin Lead Screw type RM / Resin MoBo 2 MRH 2 Features A 2-phase Stepping Motor is m

n 2 n (Dynamic Programming : DP) (Genetic Algorithm : GA) 2 i

Development of Induction and Exhaust Systems for Third-Era Honda Formula One Engines Induction and exhaust systems determine the amount of air intake


<836F F312E706466>


BNM

Motivation and Purpose There is no definition about whether seatbelt anchorage should be fixed or not. We tested the same test conditions except for t


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

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

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

<96BC8FCC96A290DD92E82D37>

経済論集　４５‐１（よこ）（Ｐ）☆／２．李

Table 1 Properties of Shrink Films on Market Fig. 2 Comparison of Shrinkage curves of PS and PET films. Fig. 3 Schematic diagram of "Variations in bot


1..FEM FEM 3. 4.

(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

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


土木学会構造工学論文集(2009.3)

( ) [1] [4] ( ) 2. [5] [6] Piano Tutor[7] [1], [2], [8], [9] Radiobaton[10] Two Finger Piano[11] Coloring-in Piano[12] ism[13] MIDI MIDI 1 Fig. 1 Syst

評論・社会科学　８４号（よこ）（Ｐ）／３．金子

Transcription:

Machining Performance of High-rate Facemilling Cutters with SWC Application Tetsutaro HOSHI, Itsuro BABA and Tadai MATSUMOTO To develop milling tools for high-rate machining of steels, prototype cutters with a special double-rake edge design using the SWC (Silver White Chip) cutting principle have been evaluated in milling tests of the low carbon steel SS 41 generally used for weldments and the SCM 440 chromium-molybdenum steel. Three kinds of indexabletype prototype cutters with ISO M 2 grade inserts have been tested: they are, so-called "type-u" facemilling cutter intended for rough machining of the low carbon steel, "type-s" face-milling cutter for medium carbon steels and alloy steels, and "type- SL" cutter for slot milling operation. Test results show that when proper cutting conditions are selected so as to form the built-up edge on the primary rake face, the cutting edge is free from the fragile chipping, and therefore the high-rate milling is possible. A double-rake edge of the prototype cutters is operated normally and attain tool life from 2 000 to 10 000 cuts per edge at the metal removal rate several times greater than that of a conventional cutter edge. Machining power required by the SWC cutters is reduced by 20 to 38% to that by the conventional cutter. It will be possible to design cutters for practical use based on those test results. Key words: metal cutting, face-milling cutter, slotting cutter, tungsten carbide tool, low carbon steel, chromium-molybdenum steel, built-up edge, machining power, tool life.

undamental model of SWC cutting X-IX SECTION VIEW) Yn1 =- 30 Yn2 = 15-30 Formation of the subsidiary chip in cutting a; Depth of cut S; Feed xr= 50-70 Table 1 Principal geometries of prototype cutters evaluated in the study

Fig. 2 Geometries of type-u and type-s face-milling cutters Fig. 4 Type-SL prototype slotting cutter used in the study Fig. 3 Type-U prototype face-milling cutter used in the study

Table 2 Cutting conditions and work materials tested Fig. 5 Sequence of chip removal at the end of a cutting cycle Cutter; Type-U (SWC universal) face-milling cutter, Cutting speed; 87 m/min, Feed; 1. 0 mm/t, Depth of cut; 4.0mm, Work material; SS 41 (low carbon steel generally used for weldments), Bhn 152 (a) Type-U face-milling cutter, low carbon steel SS 41 generally used for weldments (b) Type-S face-milling cutter, chromium-molybdenum steel SCM 440 (c) Type SL slotting cutter, chromium-molybdenum steel SCM 440 Fig. 6 Typical chips removed by prototype cutters

cutting speed : 87 m/min, after 4920 cuts cutting speed : 153 m/min, after 1193 cuts Type-U face-milling cutter in machining SS41 low carbon steel Fig. 7 Metal removal rate and power requirement per cutting edge, comparison between type- U SWC and conventional face-milling cutters in machining SS 41 Bhn 152 low carbon steel generally used for weldments Ks denotes specific cutting force cutting speed : 58 m/min, after 6300 cuts cutting speed : 80 m/min, after 3000 cuts Type-S face-milling cutter in machining SCM 440 chromium-molybdenum steel Fig. 9 Photographs of type-u and type-s face-milling cutter edges showing normal wear and fatigue fracture Fig. 8 Metal removal rate and power requirement per cutting edge, comparison among type-s face-milling, type-sl slotting and conventional face-milling cutters in machining SCM 440 Bhn 275 chromium-molybdenum steel K, denotes specific cutting force

(a) A left-handed insert, after 2 000 cuts (b) A right-handed insert, after 5 900 cuts Fig. 11 Photographs of type-sl slotting cutter edges used in machining SCM 440 chromium-molybdenum steel at 43 m/min cutting speed Fig. 10 Tool life data of type-u and type-s facemilling cutters in terms of number of chips removed by a cutting edge in machining SS 41 low carbon and SCM 440 chromium-molybdenum steels respectively Fig. 12 Tool life data of type-sl slotting cutter in terms of number of chips removed by a cutting edge in machining SCM 440 chromiummolybdenum steel L and R denote left- and right-handed edges respectively Table 3 Recommended cutting conditions of the prototype cutters tested

Table 4 Practical machining situations envisioned by the study hereby reported 1) A. J. Pekelharing : The Exit Failure in Interrupted Cutting, Ann. CIRP, 27, 1, (1978) 5. 2) D. Bizeul and F. Le Maitre : Entrance Angle in Milling and Dynamic Stress Waves Propagation in the Tool, Ann. CIRP, 27, 1, (1978) 11. 6) M. C. Shaw:Fracture of Metal Cutting Tools, Ann.

CIRP, 28, 1, (1979) 19. 7) J. Takagi and M. C. Shaw : Evaluation of Fracture Strength of Brittle Tools, Ann. CIRP, 30, 1, (1981) 53. 8) H. Takeyama : Brittle Fracture of Tool Materials Characterized by Complex Structure, Ann. CIRP, 30, 1, (1981) 59. 13) K. Okushima and T. Hoshi: Tool Fracture in Facemilling Operation, Ann. CIRP, 15, (1967) 309. 14) K. Uehara and Y. Kanda: On the Chipping Phenomena of Carbide Cutting Tools, Ann. CIRP, 25, 1, (1977) 11. 15) P. C. Pandy, S. M Bhatia and H. S. Shan: Thermomechanical Failure of Cemented Carbide Tools in Intermittent Cutting, Ann. CIRP, 28, 1, (1979) 13. 17) H. Negishi, K. Aoki and T. Sata: Study on Tool Failure of Carbide Tools in Interrupted Turning, Ann. CIRP, 29, 1, (1980) 57. 18) H. Negishi, K. Aoki and T. Sata: Study on Tool Failure of Carbide Tools in Interrupted Turning (Continued Report), Ann. CIRP, 30, 1, (1981) 43. 19) K. Uehara and Y. Kanda: Fundamental Approach to the Thermal Crack of Cermet Cutting Tools, Ann. CIRP, 30, 1, (1981) 47. 20) N. Alverti, S. Noto La Diega, A. Passannanti and G. Carro-Cao: The Effects of the Fracture, Chipping and Wear of Cemented Carbide Tools on the Determination of the Optimum Metal-cutting Conditions, Ann. CIRP, 30, 1, (1981) 67.

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