![ISSN 2393-8471
International Journal of Recent Research in Civil and Mechanical Engineering (IJRRCME)
Vol. 2, Issue 1, pp: (951-954), Month: April 2015 – September 2015, Available at: www.paperpublications.org
Page | 109
Paper Publications
REFERENCES
[1] C. Yuksel, A. Kahraman, Dynamic tooth loads of planetary gear sets having tooth profile wear, Mechanism and Machine
Theory 39 (2004) 695–715.
[2] R.G. Parker, S.M. Vijayakar, T. Imajo, Non-linear dynamic response of a spur gear pair: modeling and experimental
comparisons, Journal of Sound and Vibration 237 (3) (2000) 435–455.
[3] R. Maliha, U.C. Dogruer, H.N. Ozguven, Nonlinear dynamic modeling of gear-shaft-disk-bearing systems using finite
elements and describing functions, Journal of Mechanical Design 126 (2004) 534–541.
[4] R.D. Britton, C.D. Elcoate, M.P. Alanou, H.P. Evans, R.W. Snidle, Effect of surface finish on gear tooth friction, Journal
of Tribology 122 (2000) 354–360.
[5] S. Kong, K. Sharif, H.P. Evans, R.W. Snidle, Elastohydrodynamics of a worm gear contact, Journal of Tribology 123
(2001) 268–275.
[6] D.T. Tuttle, P.W. Seeing, A nonlinear model of a harmonic drive gear transmission, IEEE Transactions on Robotics and
Automation 12 (3) (1996) 368–374.
[7] B.A. Helouvry, A survey of models, analysis tools and compensation methods for the control of machines with friction,
Automatica 30 (7) (1994) 1083–1138.
[8] P. Doupont, Avoiding stick–slip in position and force control through feedback, Proceedings of the 1991 IEEE
International Conference on Robotics and Automation, Sacramento, California, pp. 1470–1475.](https://image.slidesharecdn.com/millingbyusingsinglecutterascuttingtool-299-170408062247/85/Milling-By-Using-Single-Cutter-As-Cutting-Tool-4-320.jpg)
Milling By Using Single Cutter As Cutting Tool
- 1. ISSN 2393-8471 International Journal of Recent Research in Civil and Mechanical Engineering (IJRRCME) Vol. 2, Issue 1, pp: (106-109), Month: April 2015 – September 2015, Available at: www.paperpublications.org Page | 106 Paper Publications Milling By Using Single Cutter As Cutting Tool 1 Mr.Barkade Shriram, 2 Mr.Nevaskar Onkar, 3 Mr.Pol Kishor, 4 Kapare Rohan 1,2,3,4 Department of Mechanical Engineering, Sinhgad institute of technology and science, Pune, India. Abstract: This Kinematic linkage of internal cylindrical surface is need for cutting the elliptical as well as cylindrical surface .The cost required for these type of machines is less as compared the conventional milling machine. Kinematic linkage mechanism is based on four bar linkage mechanism is converted into internal cylindrical boring & shape. Double worm drive is used to drive the worktable in circular manner as well as elliptical manner. Worm gear pair ensure that is zero backlash. Adjustable crank mechanism is used for increase the range or the radius of circle traced by the worktable .speed required for machine can easily vary by using speed regulator for large plant but small plant we can easily change the motor. Keywords: Small milling machine special purpose machine (SPM), elliptical milling. 1. INTRODUCTION This paper describes that kinematic linkage for internal cylindrical Industrial products like wooden blocks, Plummet blocks etc. are machined from materials like castings, wood or nylon , often special fixtures need to be developed to carry out the internal surface operations like milling , boring and grinding when these parts are to be processed on conventional machines like lathe, milling or grinding machine. which proves costly, and time consuming, Linkage design of mechanism to give desired machining action , adjustable crank design to give variety of sizes ,pair of worm and worm wheel to ensure robust and vibration free drive , spiral bevel gear box to ensure high torque and variable speed to spindle, table linkage design for workpiece holding and movement. Mechanical design of components under given system of forces to determine functional dimensions of the components to be used using various formulae and empirical relations, Manufacturing assembly of the device and testing on various job materials for various operations. 2. CONVENTIONAL MACHINE AND SPM 2.1 Conventional Machines: Now a days conventional machine are used to machine the work piece or job like lathe machine, milling machine, boring machine, drilling machine etc. milling operation done on the milling machine .milling machine is heavy and need more space for installation. It is not easy to transport the whole assembly on the site need to shift with dissembled position.it require the more time to assemble the machine. Required power to run the machine is very high as compare to the other machines. 2.2 Special purpose machines: This machine are developed for the single operation or for sequenced operation . they produced in limited quantiy with high quality and high accuracy .they have specific specification to do work. Work by the spm it will be automatic, semiautomatic and manual. 2.3Comparison of conventional and SPM: By considering all the parameter like speed ,accuracy,cost,time production rate etc. 2.4 Gashof’s law: The length of the shortest link plus the longest link of a planar four-bar kinematic-chains cannot be greater than the lengths of the other two Parts.
- 2. ISSN 2393-8471 International Journal of Recent Research in Civil and Mechanical Engineering (IJRRCME) Vol. 2, Issue 1, pp: (951-954), Month: April 2015 – September 2015, Available at: www.paperpublications.org Page | 107 Paper Publications Figure 1:- Fig. For Gashofs Law 3. OPERATION ANALYSIS OF MACHINE The job to be machined is held onto the table by clamping bolts. Cutter motor is started to drive cutter gear box which in turn drives the cutter. Depth of cut is given by moving the cutter down using screw mechanism. Handle is rotated to drive the worm wheels which will turn the crank mechanism that moves the job in circular path thus the internal diameter is cut. Next cut is taken by rotating screw and thus job is finished. 4. BALLBEARING 1. Inner/Outer Ring Manufacturing Process • The bearing steel is machined (turned) or forged into rough cut, basic ring configurations; • Rings are machined to within rough tolerance specifications; • Rings are heat treated to increase the steel’s strength; • Ring faces receive the final grinding, removing any rough spots; • The ring O.D. and I.D. are finish ground to a smooth surface; • Raceways are also finish ground to an even surface; • The raceways are honed to a polished finish; and, • The rings are then cleaned and readied for assembly. 2. Ball Manufacturing Process • The bearing steel wire is cold stamped (headed) into roughly shaped balls; • Balls are rough ground to remove the flashing (orbit) created during heading; • The balls are heat treated for strength; • Balls are rough ground again to remove coarser imperfections; • The balls are next finish ground; • The balls are lapped (a fine-polishing process); and, • Finally, the balls are cleaned and readied for assembly.
- 3. ISSN 2393-8471 International Journal of Recent Research in Civil and Mechanical Engineering (IJRRCME) Vol. 2, Issue 1, pp: (951-954), Month: April 2015 – September 2015, Available at: www.paperpublications.org Page | 108 Paper Publications 3. The Stamped Steel Cage Manufacturing Process • Blanks, or donut shaped discs, are stamped out of strip steel; • The retainers are partially (rough) formed; • The retainers are next finish formed; • Retainers are then punched (if rivets are to be used); • Retainers go through a deburring process; and, • The finished retainers are cleaned and readied for assembly. Part Table SR NO. PART CODE DESCRIPTION QTY MATERIAL 1. ICM –1 MAIN SPINDLE 01 EN24 2. ICM –2 GEAR BOX 01 STD 3. ICM –3 WORM 02 EN9 4. ICM –4 WORM GEAR 02 CI 5. ICM –5 SPINDLE HOUSING-2 01 EN9 6. ICM –6 CRANK 02 EN9 7. ICM –7 BEARING HOUSING-1 02 EN9 8. ICM –8 BEARING HOUSING-2 01 EN9 9. ICM –9 DRIVE MECHANISM 01 EN9 10. ICM –10 HANDLE 01 EN9 11. ICM –11 CUTTER 01 STD 12. ICM –12 WORK TABLE GUIDE 01 MS 13. ICM –13 WORK TABLE 01 MS 14. ICM –14 HANDLE CLAMP 01 EN9 15. ICM –15 GUIDE BAR 01 EN9 16. ICM –16 GUIDE BUSH 01 GM 17. ICM –17 MOTOR 01 STD Table 1: Components of Project 5. CONCLUSION We successfully designed the mechanism to run the single tool as cutter and to fix the job we designed magnetic table which help to hold the cast material jobs. ACKNOWLEDGMENT It is believed that our heartiest gratitude with pleasure is towards S.I.T.S., Narhe, which gave us an opportunity in fulfilling our desire of reaching our goal. The satisfaction that accompanies the successful completion of any task would be incomplete without the mention of all people who deserve it. Last but not least, we would like to thanks our project guide Prof.Rohan Kapare& entire friend for their timely suggestion during the project Figure 2:- Force analysis in a work piece cut by a flat end mill
- 4. ISSN 2393-8471 International Journal of Recent Research in Civil and Mechanical Engineering (IJRRCME) Vol. 2, Issue 1, pp: (951-954), Month: April 2015 – September 2015, Available at: www.paperpublications.org Page | 109 Paper Publications REFERENCES [1] C. Yuksel, A. Kahraman, Dynamic tooth loads of planetary gear sets having tooth profile wear, Mechanism and Machine Theory 39 (2004) 695–715. [2] R.G. Parker, S.M. Vijayakar, T. Imajo, Non-linear dynamic response of a spur gear pair: modeling and experimental comparisons, Journal of Sound and Vibration 237 (3) (2000) 435–455. [3] R. Maliha, U.C. Dogruer, H.N. Ozguven, Nonlinear dynamic modeling of gear-shaft-disk-bearing systems using finite elements and describing functions, Journal of Mechanical Design 126 (2004) 534–541. [4] R.D. Britton, C.D. Elcoate, M.P. Alanou, H.P. Evans, R.W. Snidle, Effect of surface finish on gear tooth friction, Journal of Tribology 122 (2000) 354–360. [5] S. Kong, K. Sharif, H.P. Evans, R.W. Snidle, Elastohydrodynamics of a worm gear contact, Journal of Tribology 123 (2001) 268–275. [6] D.T. Tuttle, P.W. Seeing, A nonlinear model of a harmonic drive gear transmission, IEEE Transactions on Robotics and Automation 12 (3) (1996) 368–374. [7] B.A. Helouvry, A survey of models, analysis tools and compensation methods for the control of machines with friction, Automatica 30 (7) (1994) 1083–1138. [8] P. Doupont, Avoiding stick–slip in position and force control through feedback, Proceedings of the 1991 IEEE International Conference on Robotics and Automation, Sacramento, California, pp. 1470–1475.