the primary function for which cutting fluid is used in certain machining processes. Ops: A. OWash away chips B. O Cooling the tool and work C. O Lubrication D. OImprove finish
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- Abrasive machining makes use of ______ to remove material.Calculate spindle RPM and machining time for cutting a 1.5" diameter 4" long at 225 SFPM using a feed rate of 0.004".2. Honing is an operation performed as the operation. and 3. In sawing operation, the 4. For the principle of ECM, it is based on the 5. elements. that resulted from the previous machining can be achieved by the honing process. is used for non-ferrous materials and plastics. The is used for general purpose machining of ferrous materials. is the most common instrument used for measuring the accuracy of the machine tool
- Q3. Identify the secondary machining process from the following. O Rolling Gas cutting O Shaping O Riveting11. The following is a non-machine tool application of NC: * Drafting O Turning Drilling MillingIn shaper machine the workpiece will be during machining Select one: O a. Rotating O b. Resolve O c. Reciprocating O d. Stationary
- Please write the NC code for machining this part in Fanue system.3) Turning: A turning operation is to be adopted under the following machining conditions: Cutting speed: V = 75 m/min Feed rate: f= 0.25 mm/rev Depth of cut: a = 1.75 mm External workpiece diameter: Do = 50 mm Determine: a. The final workpiece diameter b. The rotational speed of the workpiece c. The tool feed rate expressed in m/min d. The material removal rate mm³/min e. The specific energy of the material assuming that the measured cutting force is F= 750 N. Knowing the specific energy, which of materials from the table below could the workpiece be composed? Approximate Specific-Energy Requirements in Cutting Operations SPECIFIC ENERGY* MATERIAL Aluminum alloys Cast irons Copper alloys High-temperature alloys W-s/mm³ 0.4-1.1 1.6-5.5 1.4-3.3 3.3-8.5 0.4-0.6 4.9-6.8 3.8-9.6 3.0-5.2 2.7-9.3 3.0-4.1 hp-min/in³ 0.15-0.4 0.6-2.0 0.5-1.2 1.2-3.1 0.15-0.2 1.8-2.5 1.1-3.5 1.1-1.9 1.0-3.4 1.1-1.5 Magnesium alloys Nickel alloys Refractory alloys Stainless steels Steels Titanium alloys * At…Answer the following questions by circling True or False. 5. Tool layouts can be converted into a cam profile that is used for the control of the tool. .... () 6. Higher the rake angle, less the cutting forces. 7. A very large clearance angle increases the strength of the tool tip. 8. The continuous chip causes poor surface finish and low tool life. 9. Ceramics are the hardest tool materials in the world. 10. The smaller the cutting ratio, the larger the cutting deformation. 11. A shaper can be used for maching flat surfaces in horizontal and angular directions. 12. During the return stroke of the shaper, the cutting tool will simply be sliding... 13. The cutting speed of the hydraulic shaper changes throughout most of the cutting stroke. 14. Arbour-mounted cutters are used in vertical axis machines to generate flat surfaces... 15. Dividing head is an important attachment that is used to divide the periphery of the workpiece into a number of divisions to machine surfaces.. () () ()
- Which of the below is true for conventional milling: Chips are removed behind the cutter which reduces the chance of re-cutting Chip width starts from zero and increases which causes more heat to diffuse into the workpiece and produces work hardening O Creates cleaner shear plane which causes the tool to rub less and increases tool lifeTRUE OR FALSE. IF FALSE WHAT WORD MAKES THE STATEMENT INCORRECT AND WHAT IS THE CORRESPONDING CORRECT ANSWER. In Machining the chip dissipates most of the energy. Thus, it has the lowest temperature relative to the workpiece and tool.Date: 15-7-2021 Q5: A-Define the following terms: 1-Reaming. 2-Counter boring. 3- Centering. 4-Taping. B-Compare between the up milling and down milling process.