2.1.4 Reliability vs. Maintainability vs. Availability
Figure 2: Table displaying relations between Reliability, Maintainability & Availability
From the table, it can be deciphered that to achieve maximum reliability, a maximum availability is needed and being more prioritized compared to maintainability.
2.2 Assembly Line
An assembly line is a manufacturing process in which interchangeable parts are added to a product in a sequential manner using optimally planned logistics to create a finished product much faster than using handcrafting-type methods. It is one of the most widely used production system. Productivity of a manufacturing system can be defined as the amount of work that can be accomplished per unit time using the
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This complicated design process is associated with high costs, long lead times and high probability of risks and reworks. Hence every aspect of engineering should be considered in the designing process so that the outcome would be optimized. The single-model assembly line is not efficient for today’s competitive industry because to respond the customer’s expectation, companies need to produce mixed model products. With advanced technologies nowadays, variable processing times and parallel processing workstations are now possible. The new hybrid configurations are more flexible and produce better performance as the configurations are greatly influenced the performance in terms of reliability, output, quality and …show more content…
To rectify the problem, welding operators should use a neck-checking fixture or neck alignment tool to make sure the neck is bent to the proper angle [15]. It is also important to check that the neck is installed correctly. If the neck isn’t fully seated, it may extend too far and lead to TCP problems. To protect against future issues, it may also be helpful to program a TCP check to verify the proper position. Welding operators, however, shouldn’t assume that welds that are off-location are always caused by an incorrect TCP. In some cases, they can be the result of improper fixturing that allows the part to move or a loose robot base. Or there may be a variation in the part itself
"Welding Processes, Welding Faults, Defects & Discontinuities For NDT Technicians Part 3." Hera.org. Hera, n.d. Web. 15 Mar. 2014. .
Henry Ford (1863-1947) revolutionized the automobile industry with the assembly line method of production, which proved very successful for 15 million Model Ts were sold. Humans were similarly produced in the Brave New World where the embryos passed along a conveyor belt while a worker or machine would have a specific task dealing with the specimen. Again, this assembly line method proved very successful.
In the 1920’s the United States economy was booming, and a famous man by the man of Henry Ford came along and had an industry changing idea. He set up the first production line style for producing automobiles. Each assembly line worker had one or two specific tasks to complete on the cars that came through. The process began with a skeleton on the car, and as it went down the line from worker to worker it slowly gained more and more pieces finishing the automobile completely...
No real thought was given for future growth when building the assembly line, causing bottlenecks. Additionally since orders may range from several hundred to several thousand units flexibility must be built into the production design. The nineteen stations used by X-Opoly do not give the ability to successfully produce both volume and variety. With such a wide range of production orders, both permanent and temporary production lines may be looked at for both lifecycle and process improvement.
Welding is a very important job in today’s society. With new building designs, and bridges to every day metal products, welders are needed to do these tasks. Almost everything that you use every day has some sort of weld to it.
Beetz, Kirk H. "Assembly Line." Dictionary of American History. Ed. Stanley I. Kutler. 3rd ed. Vol. 1. New York: Charles Scribner's Sons, 2003. 334-336. Gale Virtual Reference Library. Web. 23 Mar. 2014.
The assembly line of today consists of a motor driven belt system and a lot of machines. With all the parts moving to the workers, production goes very quickly. Each employee has a specific job. So basically, one person would put a tire on, then the next person in line would install the lug nuts to hold the wheel in place.
To make a decent weld, one has to have a steady hand, the proper safety equipment, and the welding tools must be set up to sometimes exacting specifications; unless you’re using explosives, then the specifications must always be exact.
At first, the Model T was hand assembled and took roughly 12.5 hours. When Henry Ford started to build his famous Model T in 1909, his company sold each automobile for $825. Through Ford’s genius perspective, he wanted to reduce the cost per car and the time to build the T. After observing a butcher shop, he engineered a line. This line consisted of a range of workers at each station. At each station, a designated worker puts a piece of the car on; whether from installing the engine or bolting the wheels together or buckling the seats in. These stations add up and produce one final Model T automobile. Thus, the assembly line is able to reduce the overall cost, increase quality, and reduced the time to build the Model T. By the year of 1925, the overall cost was reduced to $260 and took about 93 minutes to construct one. As Henry Ford said, “There is one rule for industrialists and that is: Make the best quality of goods possible at the lowest cost possible, pay the highest wages possible.” Ford followed this rule, stuck by this rule, and lived by this rule. Therefore, the assembly line reduced the fuel cost minimization by cutting the time required to build, lowered the overall cost, and manufactured mass quantities of the Model
The assembly line allowed to make products quickly and affordable( "Henry Ford Gale”). The assembly line is a system moving items past workers who each assemble a particular part for the vehicle being manufactured ("Henry Ford Gale”). The assembly line made it easier manufacturing vehicles because only one person had to focus on one job. Vehicles became produced a lot faster than they had in previous years because of the assembly line was so efficient. The assembly line cut completion time of one vehicle's chassis assembly in half ( “Ford's Assembly Line Turns 100”).Before the assembly line it would have taken 12 to produce on vehicle, with the use of the assembly line it only took six hours to manufacture one vehicle ( “Ford's Assembly Line Turns 100”). The engine assembly was also done more quickly. Engine assembly originally took ten hours to assemble one engine. Due to the assembly line it only took four hours to assemble one engine ( “Ford's Assembly Line Turns 100”). With the success of the assembly from 1908 to1916 the Ford Motor Company had produced one million Model
Dependability is “doing things on time” and is established over time and in the end overlaps all other factors. In customer’s point of view it does not matter how cheap, fast, innovative a product/service is, if they cannot depend that it will be delivered in time, the customer will be lost. A company also measures dependability by the product’s ability to function as expected and to perform effectively over a reasonable amount of time. Dependability inside an organization is also very important as it saves time and money; by reducing the ineffective use of resources because dependability reduces the chance of repeating input resources or some resources left unused that would increase the cost of maintain, or labor cost. For example, every product comes with a guarantee/warranty claims which insures that customers can get their product exchanged with a new one which in turn gives a customer a feeling that he or she can depend on the
...mpany up and running through any kind of interruptions such as power failures, IT system crashes, natural or man-made disasters, supply chain/vendor problems and more.
The development of the manufacturing industry, quality and control, manufacturing capacity increase or the duration and the need to reduce cost has arisen is inevitable. Thus automation and programming concepts were started years ago. Automation is a machine's operative procedures and their sequence start form beginnig to end without human intervention, and its done automatically. Programming of the sequence of operations is prerared and tranfered to the counter. A bench during the operation of the program, and in the process, this will provide for amendments to the alignment and speed, then the counter is called flexibility.
Manufacturing methods advanced and transformed throughout the Industrial Revolution. Mass production is a system of manufacturing where machines quickly produce large quantities of product. Interchangeable parts are pieces of products that are made identically. These identical parts were easy to replace and allowed products to last longer. Henry Ford, who was the previous owner of Ford Motor Company, used interchangeable parts in the automobiles he produced to help keep the costs down. Ford also developed the assembly line. An assembly line uses workers and machines in a succession to create
In order to be globally competitive in today’s world class manufacturing environment, firm place an increase emphasis on quality productivity. Quality has become the top priority of the companies in the manufacturing industries in order to compete with the existing competition. To ensure that all these manufacturing industries meet the product quality standard, International Organization for Standard established ISO 9000 on 1987 to define, establish and maintain an effective quality assurance system for manufacturing industries.