Which one of the following statements is NOT true? Group of answer choices In orthogonal cutting, the cutting edge of the tool is perpendicular to the cutting direction. Continuous chips are typically formed at high cutting speeds and/or high rake angles. Continuous chips are always desirable because they produce good surface finish. In cutting, chip thickness is always greater than the depth of cut. PreviousNext

Which one of the following statements is NOT true? Group of answer choices In orthogonal cutting, the cutting edge of the tool is perpendicular to the cutting direction. Continuous chips are typically formed at high cutting speeds and/or high rake angles. Continuous chips are always desirable because they produce good surface finish. In cutting, chip thickness is always greater than the depth of cut. PreviousNext

Precision Machining Technology (MindTap Course List)

2nd Edition

ISBN:9781285444543

Author:Peter J. Hoffman, Eric S. Hopewell, Brian Janes

Publisher:Peter J. Hoffman, Eric S. Hopewell, Brian Janes

Chapter7: Grinding

Section7.1: Introduction To Precision Grinding Machines

Problem 7RQ: Tool and cutter grinders can be used to _______ existing cutting tools or to create new, customized...

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I have three parts that I need answered pertaining to the print provided below. Based on the shape of cutting-plane line, what type of section is Section B-B? (Multiple Choice)a. Offsetb. Halfc. Broken outd. Removed Except for Section B-B, what other type of section view is used on the main views? (Multiple Choice)a. Invertedb. Broken outc. Hiddend. Inclined Why is the total width not given in the front view (central on drawing)? (Multiple Choice)a. There is a flat end on the left and the critical dimension is from the left edge to the center of the hole.b. There is a slot on the face and the critical dimension is from the right edge to the center of the slot.c. There is a rounded end on the left and the critical dimension is from the right edge to the center of the hole.
Write TRUE is the statement/s is True. If the statement is false, identify the word/s that makes the sentence incorrect and write its corresponding correct answer. 16. since the thickness of chips is always greater than the depth of cut, chip compression ratio is àways less than 1.0. 17. Inserts have multiple cutting points. 18. Free Machining steels are non-ferrous metals which contain sulfur and phosphorus.
Briefly define the term cutting speed.
Write TRUE is the statement/s is True. If the statement is false, identify the word/s that makes the sentence incorrect and write its corresponding correct answer. 1. High cutting temperature is undesirable because it reduces tool life, produces hot chips and can cause inaccuracies in tool dimension due to thermal expansion. 2. Cubic boron nitride does chemically react with iron and nickel. 3. Nose wear is usually caused by rubbing of the tool along the machined surface of the workpiece.
Based on Figure 3: draw the section view along the x-x cutting plane line. i) Complete the section view including correct use of line types and rules.
Which type of feature doesn't belong to form tolerances? Circularity The profile of a surface Flatness Cilindricity Which option about chief elements in metal cutting is wrong? Feed s is the tool distance moved along the axis per revolution of the work
QL Match list (1) with list (IT) and select the correct answer? Ja] Type of chip 1 Continuous chip. 2 Serrated chips. List I List II Type of material being machined and the cutting conditions. A cast irons are machined at low cutting speeds B ductile materials at low-to-medium cutting speeds Ctitanium alloys machined at higher cutting speeds ductile work materials are cut at high speeds and relatively small feeds and depths 3 Discontinuous chip. Continuous chip with 4 built-up edges. D Types of Welds Geometry No. Flange weld A. 2 fillet weld 3 Surfacing weld 4 Plug weld D Slot weld 6 groove weld lel Process Grain flow of the part 1 Forging 2 Machining в 3 Casting
Milling Which of these machining processes does not belong to Nontraditional 4point ones? Laser machining Precision grinding machining Electron beam machining O Ultrasonic machining peints Choose the right answer: Having a scratches on surface increase the fatigue strenght The lower the quality of the surface finish, the less of area of a contact will have
Question 3. State whether or not the following statements are true, explaining your reasons: 3.a. For the same shear angle, there are two rake angles that give the same cutting ratio, 3.b. For the same depth of cut and rake angle, the type of cutting fluid used has no influence on chip thickness, 3.c. If the cutting speed, shear angle, and rake angle are known, the chip velocity can be calculated, 3.d. The chip becomes thinner as the rake angle increases, 3.e. The function of a chip breaker is to decrease the curvature of the chip.
2) State whether or not the following statements are true for orthogonal cutting, explaining your reasons: a. For the same shear angle, there are two rake angles that give the same cutting ratio. b. For the same depth of cut and rake angle, the type of cutting fluid used has no influence on chip thickness. c. If the cutting speed, shear angle, and rake angle are known, the chip velocity can be calculated. d. The chip becomes thinner as the rake angle increases. e. The function of a chip breaker is to decrease the curvature of the chip.
Answer the following questions by circling True or False. 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.. () () ()
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.. () () ()