Video lecture on design procedure of cotter joint, socket and spigot joint from design of cotter joint, knuckle joint,levers and offset links chapter of des. Currently, of the methods shown below, an extremely efficient gluing method glue joint method. The riveted joints are classified as i lap joint and ii butt joint according to position of plates. Sep 24, 2017 materials for metal expansion joints manufacturing the most usual materials used in the manufacturing of our metal expansion joints are austenitic stainless steels, as ss304 1. This increases the bearing area and permits drilling while making the slots. 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. Keys, cotter and unit 5 key, cotter and knuckle knuckle. Manufacturing including importing for the 2016 chemical data reporting cdr period, 22 sites reported manufacturing including importing perchloroethylene in the united states. A cotter joint is a temporary fastening and is used to connect rigidly two coaxial rods or bars which are subjected to axial tensile or compressive forces. Design procedure of cotter joint, socket and spigot joint. A manufacturing cost and supply chain analysis of sic power electronics applicable to mediumvoltage motor drives kelsey horowitz, timothy remo, and samantha reese. Welding is the method of locally melting the metals sheets or plates. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed. A process for manufacturing a universal joint mainly by cold forging which comprises a blanking step to punch out a blank having a pair of fork member portions projecting from one side thereof and a hub member portion out of a sheet metal or coiled sheet metal material, a pressworking step to form bolt holes on the lug member portions and projections on the opposite side thereof by extrusion.
Lean principles at work the principles of lean at lockheed martin aeronautics include. In this article, i am going to present a detailed explanation of the design procedure for knuckle joint and cotter joint. Manufacturing is the backbone of any industrialized nation. A mechanical joint is a section of a machine which is used to connect one or more mechanical.
Lo5 identify the methods used to apportion joint costs to joint products and to account for byproducts. A cotter joint is temporary joint and used to connec. Assemble the parts correctly and then draw the following views to a scale 1. Spigot is formed on one of the rods and socket is formed on the other. Pdf machine elementsi lecture notes meen322 handout to.
Joint adhesives figure 4 depicts the methods used to glue the joint when manufacturing the most common type of generalpurpose corrugated box, as shown in figure 3 type 02 refer to jis z 1507. 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 for an easy adjustment socket cotter spigot. As soon as the joint cools to near ambient temperature, it is ready for handling. The diameter of each rod design of single eye and double eye. A knuckle joint on a locomotive, seen behind the pin joint of the eccentric crank. This article deals with the situation where joint two or more products emerge from a single process. 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. Dimensions of a sleeve and cotter joint in terms of diameter of the rods d fig 4. Us4646552a process for manufacturing universal joint. Manufacturing method of cotter joint copy forging building. Joint products the manufacturing process originates with one or more raw materials started in process and two or more primary. The slots in the socket and the spigot align so that a cotter can be inserted to lock the two rods together.
The end of the rod which goes into a socket is also called spigot. This joint is applicable for tensile loads as well as compressive loads. The following is a brief discussion of the current methods for manufacturing composite blades in order that the relation of material choice, design, and manufacturing method to fatigue life may be presented. Cotter joints are used to connect two rods, subjected to tensile or compressive forces along their. Let p load carried by the rods, d diameter of the rods, d 1 outside diameter of socket, d. 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 for an easy adjustment. With this information, knowledge of the consumables to be used, and the production quantity. A thermal oxidizer blends several manufacturing processes such as molding, forming, machining, etc.
This tree lists various manufacturing processes arranged by similarity of function. One rod is fitted with a spigot, which fits inside a socket on one end of the other rod. Design of cotter joint problemsdesign of socket and spigot. Function a cotter joint is used to connect one end of a rod is provided with a. The just in time manufacturing system considered as a. Manufacturing method of knuckle joint manufacturing method of cotter joint by a jadhav akshaytm114 jadhav amit tm115 jadhav ajay tm1. Design of cotter joint problemsdesign of socket and. In this project we use theoretical method for finding dimensions of cotter joint. This in contrast with many traditional manufacturing methods, subtractive manufacturing, where the final parts are machined out from a. Please help improve this section by adding citations to reliable sources. The knuckle joint is a type of joint which is used in steering system in between the steering rod and pinion of the steering gear, as the line of the action axis of both the mechanical parts are intersecting and lies in different planes, so it is. As a result of the jv, company a obtained a guaranteed 20year supply of ore and mitigated the risk of volatile ore prices. Punching is the cheapest method and is used for relatively thin plates and.
December 2009 learn how and when to remove this template messagethis tree lists various manufacturing processes arranged by similarity of. Cotter joint parts and applications mechanical walkins. In the knuckle joint illustrated, the rods are integral with the eye and fork. Company a focused on converting ore and producing iron products, while company b operated as an ore extractor. Jan 09, 2020 a cotter joint, also known as a socket and spigot joint, is a method of temporarily joining two coaxial rods.
Figure 10 types of riveted joints single riveted lap joint this is the simplest of all riveted joints and is widely used for joining both thick and thin plates. Week6 keys and cotter joints keys, cotter joints, and knuckle joint. Compare this with the other competing products and the functional figure a2. Cotter joint has mainly three components spigot, socket and cotter as shown in figure 9. A cotter is a flat wedgeshaped piece of steel as shown in figure4. If units are lost, a decision must be made as to whether the units lost came from the beginning inventory or from the units started during the process. A manufacturing cost and supply chain analysis of sic power. One rod is fitted with a spigot, which fits inside a socket at the end of the other rod.
The very famous example is the joining of piston rods extension with the connecting rod in the cross head assembly. This technique, which precludes the need for specially modified pipe ends or couplings, produces a permanent, economical and flowefficient connection. This is mainly used to connect rigidly two rods which transmit motion in the axial direction, without rotation. Mar 06, 2020 a cotter joint, also known as a socket and spigot joint, is a method of temporarily joining two coaxial rods. Exploded view of cotter joint mainly cotter joint is manufacture by using deformation. It is usually used in connecting a piston rod to the crosshead of a reciprocating steam engine, a piston rod and its extension as a tail or pump rod, strap end of connecting rod etc. Forging, rolling, extrusion, press working are the examples of deformation process. The following sections of this chapter provide a general procedural guideline for each of these heat fusion methods. The plates to be joined are overlapped by a short distance. Large blades have been made by filament and tape winding in glassreinforced plastic, handlaminated woodepoxy, aluminum, and steel. Because of the success of jit management, taiichi ohno was named the father of jit. A manufacturing cost and supply chain analysis of sic. Pdf joint and byproduct costing introduction arthur pun.
Then a single row of rivets, conveniently spaced along the middle of the lap, completes the joint. After modeling on catia, we will analyze cotter joint on software named as ansys v15. The cotter is locked in position by means of a screw as shown in fig. Unit 5 key, cotter and knuckle joints dpg polytechnic. The electronic pdf version of this document, available free of charge. A certification sheet is sent to the pipe and fitting manufacturer documenting important physical properties such as.
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 temporary fastening and is used to connect rigidly two. Process costing joint products this is the third and final article in a series that has considered various aspects of the accounting for process costs. Design procedure for cotter joint is made to calculate. Preliminary information on manufacturing, processing. This joint doesnt allow any angular movements of rods which it connects. The compressive load is taken up by the collar on the spigot. Other joining processes are soldering, brazing, cotter joint, adhesive joint, fasteners, etc. Types of cotter joint there are three types 1 socket and spigot cotter joint 2 sleeve cotter joint.
The cotter is usually made of mild steel or wrought iron. Department of energys clean energy manufacturing initiative. Factors to be considered for selection of material for design of machine. Dnvglcg0197 additive manufacturing qualification and. Cemac is operated by the joint institute for strategic energy analysis for the u. As discussed in the chapter on test methods and codes in this handbook, a battery of tests is used to ensure that the resin is of prime quality.
Joints between the piston rod and the cross need of the steam engine. In determining the strength of the joint for the various methods of failure, it is assumed that. Manufacturing includes multifarious processes including casting, forming, joining, machining, powder metallurgy, rapid prototyping and surface working. Norton pearson education design of machine elements. All parts of cotter joint are manufacture by forging process in forging metal is in plastic stage, rather than in the molten stage is force to flow in the desired shape. 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 was first adopted by toyota manufacturing plants by taiichi ohno. Design, manufacturing and tests in metal expansion joints. When there is no beginning inventory, both methods yield the same results. Theory page 43 mechanical engg diploma topicwise paper. 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. Design of various types of riveted joints under different static loading conditions, eccentrically loaded riveted joints. Two metal manufacturing companies formed a joint venture to build and operate an integrated mill together. After the design of cotter joint, the modeling of cotter joint is done by using 3d software.
Justintime is a japanese manufacturing management method developed in 1970s. Joint venture and alternative structure transactions. Physical measures method joint costs are allocated to the joint products on the basis of the relative weight, volume, or other physical measure at the splitoff point of the total production of these products during the accounting period each product is assumed to receive similar benefits from the joint cost the cost per unit is the. Additive manufacturing enables the building of threedimensional, solid objects from digital models, and thus the realisation of complex parts. A certification sheet is sent to the pipe and fitting manufacturer documenting important physical properties such as melt index, density, escr environmental. Therefore, this discussion will only be sufficient to allow comparison with processes that are candidates for future blade manufacturing. Further cotter joint is manufactured by cold forging. Design of cotter joint a cotter is a rectangular element. Aim design and drawing of cotter joint function a cotter joint is. The cotter passes through slots made in two coaxial parts and thus prevent the relative motion between them. Manufacturing method of cotter joint1 forging piston.
Instructions the parts and assembly of the cotter joint is. Forging, rolling, extrusion, press working are the examples of deformation process all parts of cotter joint are manufacture by forging process in forging metal is in plastic stage, rather than in the molten. These joints may be subjected to tensile or compressive forces along the axes of the rods. Joint products are not separately identifiable until a. Slots in the socket and the spigot align so that a cotter can be inserted to lock the two rods together. A knuckle joint is used for the application of the tie rod joint of jib crane or tension link in the structure of the bridge. Blade manufacturing methods have been discussed in depth in recent reports challis, 1987. A cotter joint is used to connect one end of a rod is provided with a socket type of end and the other end of the rod is inserted to a socket. With this information, knowledge of the consumables to be used, and the production quantity the cost per part can be estimated. Outofplane stresses induced in composites structures. A mechanical joint is a section of a machine which is used to connect one or more mechanical part to another. Jun 23, 2019 cotter joint is a type of mechanical joint which is used to join two axial rods or bars. A typical cotter joint is as shown in figure below. Pdf joint and byproduct costing introduction arthur.
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