Cotter joint cotter joints cotter is a flat wedgeshaped. Parse tree for the selection of the manufacturing method general syntax of list mql command a single mql command viz. The cotter is locked in position by means of a screw as shown in fig. Joint probability density function joint continuity pdf. Application of chain drive and its selection method. Manufacturing of the artificial hip is very crucial as poor surface roughness of the femoral head, ball joint of the hip, can promote further abrasive wear of the acetabulum, a cupshaped bone in. 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. 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.
This is a sample video for design automation of cotter joint using vdotpro cotter joint application and proe software. The following are some of the commonly used cotter joints. This method is applied if the joint products are capable of being expressed in the some unit of measurement. Design of various types of riveted joints under different static loading. Read this article to learn about the meaning and methods of accounting of joint products. The subject of this project is the modeling and analysis of cotter joint. 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. Cotter joints may be used in areas subject to corrosion during operation, resulting in difficulty in turning rusty bolts and nuts of threaded connections. Application of chain drive and its selection method in. Mechanical joints may be temporary or permanent, most types are designed to be disassembled. Cotter joint article about cotter joint by the free dictionary. Gib is likely a cotter but with two gib heads at its ends. Selection methodologies of materials and manufacturing processes. Instructions the parts and assembly of the cotter joint is.
Cotter joint is used to connect two rods subjected to axial tensile or compressive loads. 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. 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. 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. Cotter joint a cotter joint is used to connect rigidly two coaxial rods or bars which are subjected to axial tensile or compressive forces.
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. Jadhav akshaytm114 jadhav amit tm115 jadhav ajay tm1 cotter joint a cotter joints is a flat wedge link piece of steel of. Oct 02, 2018 these are the fasteners which create their own threads while fastening into the material. Manufacturing method of cotter joint1 forging piston. 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. Air walk publications near all india radio 80, karneeshwarar koil street mylapore, chennai 600 004. The ends of the two rods are inserted from opposite sides in a. The function of rivets in a joint is to make a connection that has. 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. They have different types of head style and recess or drive style such as slotted, pozidriv, phillips, hex, torx, robertson etc. This is the simplest form of cotter joint used for fastening the two circular rods. A mechanical joint is a section of a machine which is used to connect one or more mechanical part to another. 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. A gib is used along with the cotter to make this joint.
Cotter joints use a transverse wedge with cylindrical or conical surfaces, and a longitudinal wedge. In order to achieve this goal, close coordination among the designer, material scientist, manufacturing engineer and environmental expert is needed. Production engineers work in a variety of fields and hold different titles, such as industrial engineer, production. It is uniform in thickness but tapering in width, generally on one side only. 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.
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. It consists of a semicircular key seat on the shaft surface which holds the key. An approach to selection of material and manufacturing. Cotter joint is used to connect two rods or components which are subjected. These joints are not suitable where the members are under rotation. Selection of a manufacturing process before selecting a manufacturing process, we need to know the following attributes. Methods of apportionment of joint costs to joint products. Manufacturing method of cotter joint1 forging piston scribd. Manufacturing method of cotter joint1 free download as powerpoint. Design of cotter joint to connect piston rod and crosshead. The material used is carbo n steel fo r which the fo llow ing a llowable s tresses.
They are used to span greater distances and to carry larger loads than can be done effectively by a single beam or column. Manufacturing method of cotter joint copy free download as powerpoint. The cotter comes in contact with the two rods on opposite sides and leaves clearances on both sides. Thus, selection of materials and manufacturing processes for a particular product becomes very crucial and must pass through numerous regulations to achieve green atmosphere. The woodruff key is so called because of its manufacturing method. May 12, 2019 production engineering is the science of creating safe and efficient processes for transforming raw materials into finished items. It may seem simple, but in todays costcutting, global environ ment, greater savings are available than offered by this traditional method. Application of chain drive and its selection method in automobile free download as powerpoint presentation. 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. They typically have a head, and a shank with a helical threads. Since truss members are subjected to only tensile or compressive forces along their length, the internal forces at the cut member will. 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.
A cotter joint is a simple and compact connection and is easily assembled and disassembled. Manufacturing method of cotter joint copy forging building. Production engineering concepts pdfcasting, welding, forming. This process can be replicated for any design procedure you may need. Manufacturing method of cotter joint copy free download as powerpoint presentation. Gib and cotter joints are used for rods of square or rectangular cross section. 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. What are the practical application of cotter joint. The products that result from the same production process are termed as joint products or byproducts.
Cotter joint has mainly three components spigot, socket and cotter as shown in figure 9. Therefore, the basic of apportionment is the physical volume of units found at the point of separation. In the knuckle joint illustrated, the rods are integral with the eye and fork. In this project we use theoretical method for finding dimensions of cotter joint. Ppt knuckle joint powerpoint presentation free to view. Sleeve cotter joint pdf the working of the cotter andsleeve and cotter and gib are shown below.
Design an d draw a cotter joint to support a load varying from 30 n in compression to 30 kn in tension. In the above definition, the domain of fxyx,y is the entire r2. When a special arrangement like a setscrew is provided for keeping the. Shaft keys types and their design bright hub engineering.
Again, these properties are given a relative grading, which is then converted into a scaled property. Instead of drilling a hole and using two components to complete the assembly, you. This type of key tends to have a lesser shear strength than compared to that of a rectangular or square key. Two random variables x and y are jointly continuous if there exists a nonnegative function fxy.
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