What are the methods used to determine the drilling accuracy and how to improve the accuracy?

What are the methods used to determine the drilling accuracy and how to improve the accuracy?
June 26, 2020 Comments Off on What are the methods used to determine the drilling accuracy and how to improve the accuracy? Uncategorized Assignment-help
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Mechanical engineering2- Drilling hole operationsThese operations include trusting a slab and flat cuttingBy the courses with a saw:A-• What are the main types of drills, and materials used for making the drills.• Explain with drawings the twist drill geometry.• Explain with drawings the Half-round drill geometry.• Explain with drawings the spade drill geometry.• Explain with drawings the gun drill geometry.• How to determine the optimum speeds and feeds of the cutting in both drilling and sawing.• Explain the drill jig design.B – What is the capacity required to complete the operations?• What the horsepower required for each of the drilling operations.• How to compute the time required for finishing the cut in each of the operations.• What are the methods used to determine the drilling accuracy and how to improve the accuracy?C- Answer according to what the research saysP answer forMachines:• A method of evaluating drilling operations is to do it on the basis of multiplying the number of holes drilled per year by the depth of the hole, giving total depth of hole per year. An example of this type of evaluation by Company X is shown below:Part No. 124566 in. pipe flangeASTM -A105 ForgingDrill 12 holes, 1-in. dia. by 1 ½ in. throughYearly production: 5000 piecesTotal yearly hole penetration: 12 x 112 x 5000 = 90000 in.Yearly penetration time:900003.6 x 60 = 416.7 hr.Machine 6 ft. radial drillExisting plant standard for hole penetration only, with HSS drills and flood coolant:180 rpm x 0.020 ipr = 3.6 ipmUsing the same basis for evaluation Company X decided to find out what the yearly penetration rate would be with the same number of holes using oil-hole drill under the following conditions:RPM = 500Feedrate = 0.020 ipra) How much were they able to change the yearly penetration time?b) They decided to make a further investigation to see what effect carbide tipped drills would have under the following conditions:Cutting speed = 100 fpsFeedrate = 0.020 ikrHow much were they able to change the yearly penetration time?Guidance notes for the research:The research should be composed of seven main components:search .