Manufacturing method of cotter joint1 forging piston. This type of key tends to have a lesser shear strength than compared to that of a rectangular or square key. Instead of drilling a hole and using two components to complete the assembly, you. A cotter joint is a simple and compact connection and is easily assembled and disassembled. Jadhav akshaytm114 jadhav amit tm115 jadhav ajay tm1 cotter joint a cotter joints is a flat wedge link piece of steel of. Joint probability density function joint continuity pdf. This is the simplest form of cotter joint used for fastening the two circular rods. Cotter joints may be used in areas subject to corrosion during operation, resulting in difficulty in turning rusty bolts and nuts of threaded connections. Cotter joints use a transverse wedge with cylindrical or conical surfaces, and a longitudinal wedge. Cotter joint is widely used to connect the piston rod and cross head of the steam engine, so as a joint between the piston rod and the tailor pump rod, foundation bolt etc. Instructions the parts and assembly of the cotter joint is. Design of various types of riveted joints under different static loading.
Selection methodologies of materials and manufacturing processes. Naik 3 1 associate professor, department of production engg. Finally, the weighted performance indices are estimated. This is a sample video for design automation of cotter joint using vdotpro cotter joint application and proe software. In a sleeve and cotter joint, the cut slots are always made a little bit wider than the width of the cotters in order to promote wedging action of the cotters over the slots. For the selection of an appropriate manufacturing method, the major parameters considered are dimensional accuracy, cost of production, minimum material waste, and flexibility in design.
It is uniform in thickness but tapering in width, generally on one side only. Design an d draw a cotter joint to support a load varying from 30 n in compression to 30 kn in tension. It consists of a semicircular key seat on the shaft surface which holds the key. Cotter joint cotter joints cotter is a flat wedgeshaped. Application of chain drive and its selection method. Cotter joint is used to connect two rods or components which are subjected. Cotter joint article about cotter joint by the free dictionary. Sleeve cotter joint pdf the working of the cotter andsleeve and cotter and gib are shown below. A cotter is a flat wedge shaped piece of rectangular cross section and its width is tapered either on one side or on both sides from one end to another. Read this article to learn about the meaning and methods of accounting of joint products.
Cotter joint is widely used to connect the piston rod and cross head of the steam engine, so as a joint between the piston rod and the. Again, these properties are given a relative grading, which is then converted into a scaled property. In order to achieve this goal, close coordination among the designer, material scientist, manufacturing engineer and environmental expert is needed. Cotter joint is widely used to connect the piston rod and crosshead of a steam engine, as a joint between the piston rod and the tailor pump rod, foundation bolt etc. Connection of piston rod to the crosshead of an engine, pump or compressor connection of a valve rod to its stem a rod connecting a steam cylinder to a base plate in a marine engine in a cotter.
This process can be replicated for any design procedure you may need. Cotter joint has mainly three components spigot, socket and cotter as shown in figure 9. They typically have a head, and a shank with a helical threads. In the above definition, the domain of fxyx,y is the entire r2.
In the knuckle joint illustrated, the rods are integral with the eye and fork. They are used to span greater distances and to carry larger loads than can be done effectively by a single beam or column. The following are some of the commonly used cotter joints. Cotter joints are used to connect two rods, subjected to tensile or compressive forces along their axes.
Thus, selection of materials and manufacturing processes for a particular product becomes very crucial and must pass through numerous regulations to achieve green atmosphere. Cotter joint is used to connect two rods subjected to axial tensile or compressive loads. Parse tree for the selection of the manufacturing method general syntax of list mql command a single mql command viz. Manufacturing method of cotter joint copy forging building. It may seem simple, but in todays costcutting, global environ ment, greater savings are available than offered by this traditional method. The cotter is locked in position by means of a screw as shown in fig. The material used is carbo n steel fo r which the fo llow ing a llowable s tresses. May 12, 2019 production engineering is the science of creating safe and efficient processes for transforming raw materials into finished items. Manufacturing method of cotter joint copy free download as powerpoint presentation. Clearances are absolutely required for proper functioning of the joint. A gib is used along with the cotter to make this joint. In the whole assembly the cotter is the part with least material and easy to replace, hence for this economical and practical reason cotter is kept weakest, so that it can be replaced on failure. Selection of a manufacturing process before selecting a manufacturing process, we need to know the following attributes. The cotter comes in contact with the two rods on opposite sides and leaves clearances on both sides.
This method is applied if the joint products are capable of being expressed in the some unit of measurement. Ppt knuckle joint powerpoint presentation free to view. Design of cotter joint to connect piston rod and crosshead. The woodruff key is so called because of its manufacturing method. Method of joints frame 181 introduction a truss is a structure composed of several members joined at their ends so as to form a rigid body. Oct 02, 2018 these are the fasteners which create their own threads while fastening into the material. Since truss members are subjected to only tensile or compressive forces along their length, the internal forces at the cut member will. Failure of cotter joint may causes accident, so it is necessary to design cotter joint to withstand under tension without failure the effective design of mechanical device. Gib is likely a cotter but with two gib heads at its ends. The ends of the two rods are inserted from opposite sides in a. Therefore, the basic of apportionment is the physical volume of units found at the point of separation.
Production engineers work in a variety of fields and hold different titles, such as industrial engineer, production. Manufacturing method of cotter joint copy free download as powerpoint. Methods of apportionment of joint costs to joint products. Cotter joint a cotter joint is used to connect rigidly two coaxial rods or bars which are subjected to axial tensile or compressive forces. Manufacturing method of cotter joint1 forging piston scribd. An approach to selection of material and manufacturing. Two random variables x and y are jointly continuous if there exists a nonnegative function fxy. The subject of this project is the modeling and analysis of cotter joint.
Production engineering concepts pdfcasting, welding, forming. A cotter is a flat wedgeshaped piece of steel which is used to connect rigidly two rods which transmit motion in the axial direction tensile or compressive forces without rotation. What are the practical application of cotter joint. These joints are not suitable where the members are under rotation. The function of rivets in a joint is to make a connection that has. When a special arrangement like a setscrew is provided for keeping the. Shaft keys types and their design bright hub engineering.
Cotter joints cotter is a flat, wedgeshaped piece of steel cotter joint uses one or two cotters to connect two rods rigidly transmitting forces and motion, with no rotation of the rods applications. They have different types of head style and recess or drive style such as slotted, pozidriv, phillips, hex, torx, robertson etc. Siddiqui adil adnan sidusare prasad cotter joint a cotter joints is a flat wedge link piece of steel of rectangular cross section which is inserted through the rod at high angle to there axes. Nov 07, 2009 cotter joint a cotter joint is used to connect rigidly two coaxial rods or bars which are subjected to axial tensile or compressive forces. Manufacturing method of cotter joint1 free download as powerpoint.
An application in a meat manufacturing company it is the common prac tice, that a production process ends up with more than one final prod ucts. Mechanical joints may be temporary or permanent, most types are designed to be disassembled. Joint products may be defined as two or more products produced simultaneously in a process, each having a sufficiently high saleable value to merit recognition as a main product. Application of chain drive and its selection method in automobile free download as powerpoint presentation.
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