Case study Example | Topics and Well Written Essays - 500 words - 93

Case Study Example However, this system is not suitable to use for twenty parts since it has limitations on casting sizes; usually restricted to cylindrical geometric shapes. #13: The fuel employed in Cupola furnace is gas. Iron foundries are the metal often melted in a cupola furnace. One type of furnace serving a similar purpose as cupola furnace is induction furnace. #14: The two types of furnace used to melt non-ferrous metals include cupola furnace and induction furnace. #15: The molten metal gets to the mold cavity through jolting compaction or squeezing compaction in the mold. #16: The sand that has solidified and cold enough to handle is used in filling those casting, which has hollow sections. #17: It is commendable to wear protective clothing such as safety glasses and heat-resistant clothing due to production of high temperature during these processes. #18: The best way to prevent a cast iron that has broken at the joint is by using the hardened sand to fill the cavity. #19: Impurities and porosity in sand casting, particularly at the top edge next to the riser, is often due to low patterns. On the other hand, material costs are the primary cause of massive shrinkage cavity in this casting. Modification of the pattern and cutting the cost of the equipments are the two remedies for these problems. #20: A hot-chamber casting machine uses high temperature to melt alloys while a cold chamber uses low temperature to melt alloys. Additionally, cold chamber is efficient for low-temperature melting alloys. Chapter 8 Case 1: Machining all holes, cavities and surfaces from solid bars that come in 20 feet long bars, which are sawn off lengths for machining is the best options; options two and three take longer time while options three, four and five are costly. Chapter 8 Case 2: Resin Shell molding is the best method to use in melting small bronze gear because it has rapid production rate and does not use

History and Impact of Computing Essay Example | Topics and Well Written Essays - 1500 words

History and Impact of Computing - Essay Example Its formation was intrigued by the demand for work force by the 100th battalion war department. Recruitment of the military personnel involved both Americans and Japanese volunteers. Though 2100 Japanese were recruited, they felt that the unit that was created was a strategy by the white military to protect themselves. In addition, their reluctance to join the army was because the elegance forms required the Japanese to denounce their nationality. In regards to this, most Japanese youth felt that it was an insult to their emperor (Black, 2001). The Caucasians held the official position in the regiments. The group participated in several wars such as the wars at Luciana, Belvedere, and Livorno. The casualty percentage of Japanese-American units was rated at 314 percent. Recognition for the lost lives of the volunteers was made through awards for their courage and bravery in the battlefields. Just like the African-Americans dedication in the Second World War, President Truman honored t he Japanese-Americans for their devotion to wars in Italy and Southern France. The Armed Forces was desegregated in order to allow equality and fare enrolment. The success of the war was ascribed to role the Japanese Americans played. More importantly was the war against Japan where they acted as translators and interpreters. Their service in the Military Intelligence Service was manifested in their ability to capture Japanese secret communication thus making orders to Japanese officers and quick elucidations of their enemies’ military communication code. Their involvement was significantly felt at Saipan and Okinawa. They calmed down terrified civilians due to the terror threats that were propagated by their Japanese government. They also convinced some Japanese soldiers until they surrendered (Black, 2001). Despite the 442nd impeccable service that earned the rest of Japanese-soldiers respect, the West Coast perceptions of these soldiers were different from that accorded to the Americans soldiers. Though the 442nd regiment survivors had earned the country victory in the wars, they were reunited with their families who had been placed in isolation camps. Similarly, the Japanese war veterans were harshly treated in their homes. Their residents were constantly set a blaze or vandalized and most restaurants and local shops dined offering their services to them. Though some soldiers were disbanded from wars during Italy’s post-war occupation duty due to their Japanese ancestry, President Harry Truman honored their efforts by pinning the seventh Presidential Unit Citation on the 442nd unit’s color. The reactivation of 442nd regiment unit in Hawaii following its inactivation in Honolulu proved the unit as an organized reserve unit. The recent recognition of the Asian Pacific Americans veterans of the U.S Army Second World War was held on 21 day of June in 2000. The move was an effort towards correction of the racial prejudice that had character ized United States during WWII. In regards to this recognition, the 442nd Japanese infantry earned twenty-one medals. The American Navajo Code Talkers During World War II, which started from 1939 to1945, approximately 50,000 New Mexicans were involved in almost every assault the United States marine forces raged on areas such as Peleju, Tarawa, Iwo Jima, and Guadalcanal in the