Specifically, hobbing, milling, and shaping are defined, as well as the four primary types. Multiobjective optimization pareto optimal solution. Mechanical properties of materials nptel pdf wpkuluv. Manufacturing of gears is a very interesting area involving various methodologies and varies with the type of gears to be produced. Paul,department of mechanical engineering, iit kharagpur. Gear technology, the journal of gear manufacturing issn 07436858 is published bimonthly by randall publishing, inc. Setup of the manufacturing process and economic study of. Gear steels come in grades 1, 2, and 3 as classified by the american gear manufacturing association agma. Unit 6 gear generation and finishing gear generation and. Setup of the manufacturing process and economic study of the. Gear rolling is an interesting metal forming method that can be.
Mechanical engineering 155 courses linuxpert systems. Classification of manufacturing processes engineers gallery. The process of converting raw material into finished products is called as production process. One important application of form milling is in gear manufacturing. Gears play a prominent role in the mechanical power transmission. The results of inspection are not only recorded but forwarded to the manufacturing department for taking. Depending upon the type and accuracy of motion desired, the gears and the profiles of the gear teeth can be. Erasmus mundus master of mechanical engineering setup of the manufacturing process and economic study of the gear box for industrial vehicle report author. Classification of manufacturing processes engineers. It is said that what differentiates human being from other animals is our ability to use tools. Gear metrology welcome to iit mechanical iit mechanical.
Me 206 manufacturing processes 1 department academic. Oct 22, 2008 lecture series on manufacturing processes ii by prof. Provide the means of finding out shortcomings in manufacture. The outstanding feature is that the worm offers a very large gear ratio in a single mesh. Sep 06, 2018 engineering materials are often found to posses good mechanical properties so then they are nptel mechanical engineering forming.
Understand gear trains and how to calculate ratios. Nptel provides elearning through online web and video courses. Advanced manufacturing process for micro system fabrication. Gear cutting and manufacturing methods bright hub engineering. The heart of any design for manufacturing system is a. Manufacturing processes i manufacturing processes i lecture series on manufacturing processes i by prof. Pressure line is the common normal at the point of contact of mating gears along which the driving tooth exerts force on the driven tooth. Machining is the manufacturing process by which parts can be produced to the. Nptel mechanical engineering video lecture online study material. Unit 6 gear generation and finishing gear generation.
Lecture series on manufacturing processes ii by prof. Worm and worm gear worm set is the name for a meshed worm and worm gear. Metal casting is a labour intensive process automation. Manufacturing and technical staff in industry must know the various manufacturing processes, materials being processed, tools and equipments for manufacturing different components or products with optimal process plan using proper precautions and specified safety rules to avoid accidents. Oct 20, 2008 lecture series on manufacturing processes ii by prof. Report broken links to contact us maintenance engineering handbook 7th edition malestrom download 6th edition an introduction to predictive maintenance download a practical approach to motor.
Gain the necessary tools and training to recognize convex optimization problems that confront the engineering field. Pressure angle is the angle between the pressure line and common tangent to pitch circles. Gear design objectives understand basic principles of gearing. Nptel mechanical mechatronics and manufacturing automation joint initiative of iits and iisc funded by mhrd page 7 of 63 5. Instructional objectives i manufacturing process ii. Nptel mechanical engineering manufacturing processes ii. Singhmelkotecolton honing and superfinishing honing tool used to improve the surface finish of bored or ground holes. Rolling is a process that is widely used and has very high production. Rajiv shivpuri professor of industrial, welding, and systems engineering, ohio state university.
Smaller gear is known as pinion and larger mating gear is called gear. The gear manufacturing industry aims to replace their traditional production lines with greener processes and thereby urge engineers to think about using metal forming methods instead of the traditional metal cutting solutions when possible. This section contains valuable books related to mechanical plant maintenance engineering. Module 3 selection of manufacturing processes nptel.
Functions of a gear power transmission change rotational speedtorque maintain constant speed ratio me 338. Mechanical engineering lecture notesall semesterfree. Gear shaving process simulation helps to comprehend an. Pressure regulation the pressure regulation is the process of reduction of high source pressure to a lower working pressure suitable for the application. Iron is good because of its castability and wear characteristics. A gear can be defined as a toothed wheel which, when meshed with another toothed wheel with similar configuration, will transmit rotation from one shaft to another. This article describes the various methods of manufacturing methodologies followed for each type of gear. Mechanical properties of metals, lecture notes mechanical properties of metals, pdf lecture notescorrosion and degradation of materials, pdf, 0. Lecture series on manufacturing processes i by prof. Septemberoctober 2006 the journal of gear manufacturing.
Solutions being sought are not corrective but preventative. The rolling process is a metal forming process, in which stock of the material is passed between one or more pairs of rollers in order to reduce and to maintain the uniform thickness. Maintenance engineering boiler and mechanical power. Madsen manager, industrial products engineering, neenah foundry co. Blodgett senior design consultant, lincoln electric co. Mechanical engineering video lectures from nptel, iit, mit. Purposes of jigs and fixtures and their design principles. Oct 07, 2015 gear ratio is numbers of teeth of larger gear to smaller gear. Mechanical engineering manufacturing processes i nptel. Casting process exploit the fluidity of a metal in. The second graph plotted is the range of thickness is plotted. In this production process, different types of machines, tools, equipment are used to produce the finished good.
Automobiles, gear boxes, oil engines, machine tools, industrial machinery, agricultural machinery, geared motors etc. Gear ratio is numbers of teeth of larger gear to smaller gear. Manufacturing engineering is very broad area of industrial and production engineering and equally importance for mechanical and production enginnering students. Manufacturing is the backbone of any industrialized nation. Nptel textile engineering mechanics of textile machinery. Schematic illustrations of the superfinishing process for a cylindrical part. Introductiona gear is an important machine elements which is used to for transmission of power or motion or both from one shaft to other. Spur and helical gear cuttingt at iit kharagpur and nptel, mhrd julyaug 2017 1 terms nontraditional manufacturing processesp at department of mechanical engineering, iit kharagpur julynov 2017 1 terms introduction to manufacturing processesp at department of mechanical engineering, iit kharagpur julynov 2017 1 terms. Production of screw threads by machining, rolling and grinding. If the mating gear has more teeth than the pinion, that is.
The number of teeth for spur gears is given by where k 1f fll1 for fulld tht th08f tbt th d ldepth teeth, 0. The smallest number of teeth on a spur pinion and gear, onetoone gear ratio, which can exist without interference is np. These are casting, machining, joining welding, mechanical fastners, epoxy, etc. Turning a machining process in which a singlepoint tool remove material from the surface of a rotating work piece. Several types of manufacturing processes are applied in production process based on the nature of work and ultimate resultant finished. Gear cutting me 312 manufacturing technologyvikrant sharma, mechanical engineering department. Miller welding design engineer, lincoln electric co. Mechanical engineering manufacturing processes ii nptel. We provide mediafire direct download links for engineering maintenance pdf books courses and free training. Gear life depends on effective lubrication, which can be quatified by minimum film trajns to r compositeas shown in fig.
Manufacturing processes i nptel online videos, courses. Quality control is a major part of the diamond turning process and is required after each machinabilityy of machining, sometimes after each pass of the cutting tool. Nptel provides elearning through online web and video courses various streams. To meet the strenuous service conditions the gears should have. Mechanical properties of metals, lecture notesmechanical properties of metals, pdf lecture notescorrosion and degradation of. Normally, either soft gear process dynamic or hard gear process dynamic is being aimed. This ebook is considered to be one of the most demanding mechanical engineering ebooks and civil engineering ebooks. Manufacturing price reduction was even higher, going up to 50%. Recognize different gearing systems and relative advantages and. Groover, fundamentals of modern manufacturing 2e machining a material removal process in which a sharp cutting tool is used to mechanically cut away material so that the desired part geometry remains most common application.