Precision Machining Technology (MindTap Course List)
2nd Edition
ISBN: 9781285444543
Author: Peter J. Hoffman, Eric S. Hopewell, Brian Janes
Publisher: Cengage Learning
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Textbook Question
Chapter 8.7, Problem 9RQ
Which machine mode allows short, temporary program commands to be entered for operations such as spindle starts and tool changes?
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Which of the following commands will move the tool in a diagonal line at a feed rate of 5 from position (10, 20), assuming absolute programming mode is active?
Select one:
a. N10G00X10F5
b. N10G01X20Y30F5
c. N10G01X10F5
d. N10G00X20Y30F5
Chapter 8 Solutions
Precision Machining Technology (MindTap Course List)
Ch. 8.1 - What is an ATC?Ch. 8.1 - What is an MCU and what is its function?Ch. 8.1 - Briefly describe a ball screw and a linear guide.Ch. 8.1 - Explain the benefits of using the absolute...Ch. 8.1 - Explain the benefits of using the incremental...Ch. 8.1 - Which coordinate system uses an angle and a...Ch. 8.1 - What is the name for the type of motor used to...Ch. 8.1 - Supposing a programmer, using absolute mode,...Ch. 8.1 - What is a modal code?Ch. 8.1 - What is another name for the Cartesian coordinate...
Ch. 8.1 - List four G-codes and describe their functions. a....Ch. 8.1 - List four M-codes and describe their functions. a....Ch. 8.1 - What is the name of the character that ends each...Ch. 8.1 - Explain the purpose of the safe-start portion of a...Ch. 8.2 - Name the two primary machine axes on most CNC...Ch. 8.2 - Explain the difference between a turning center...Ch. 8.2 - List the three common types of live toolholders....Ch. 8.2 - Name three major collet styles used in...Ch. 8.2 - Name three types of workholding devices for...Ch. 8.2 - Name three major styles of turning machines....Ch. 8.2 - Explain why some workholding devices can be run at...Ch. 8.2 - Explain the difference between an OD grooving tool...Ch. 8.2 - When machining workpieces made from bar stock,...Ch. 8.2 - Describe how a sub-spindle can be used to increase...Ch. 8.2 - How does a Swiss turning center differ from a...Ch. 8.3 - Write the X- and Z-axis coordinates for the part...Ch. 8.3 - To perform a facing cut using a tool with a nose...Ch. 8.3 - Explain the difference between rigid tapping and...Ch. 8.3 - How must the feed rate for tapping using a...Ch. 8.3 - Describe what happens to a concave radius (fillet)...Ch. 8.3 - Describe what happens to an outside chamfer when...Ch. 8.3 - If a G1 code command is programmed partway through...Ch. 8.3 - List and briefly describe the two methods for...Ch. 8.3 - Explain in your own words the difference between...Ch. 8.3 - In your own words, describe a canned cycle.Ch. 8.3 - List two types of canned cycles besides roughing...Ch. 8.4 - What machine mode is generally used to manually...Ch. 8.4 - MDI stands for _________ ___________ ________.Ch. 8.4 - Which must be set first, the tool geometry offset...Ch. 8.4 - What is the process called where a program is sent...Ch. 8.4 - Explain the purpose of homing.Ch. 8.4 - What is the process called when a new program is...Ch. 8.4 - When setting up a machine to run a program that...Ch. 8.4 - What does MCS stand for?Ch. 8.4 - What is used to adjust the clamping pressure of...Ch. 8.4 - What does MCS stand for?Ch. 8.4 - What does WCS stand for?Ch. 8.4 - A workpiece offset is the distance from __________...Ch. 8.5 - Explain the difference between a machining center...Ch. 8.5 - Name the two major types of ATCs and briefly...Ch. 8.5 - What are the two basic types of tapping...Ch. 8.5 - What are the three most common styles of collets...Ch. 8.5 - What are the two basic types of tapping...Ch. 8.5 - Prob. 6RQCh. 8.5 - A programmable indexing fixture creates a fourth...Ch. 8.5 - A _______ ________ uses interchangeable tooling...Ch. 8.5 - Briefly describe a tombstone used for CNC...Ch. 8.5 - A custom ______ can be designed and built to hold...Ch. 8.5 - The combination of the machining operations...Ch. 8.6 - What are the three major axes used during CNC mill...Ch. 8.6 - What command would be given to turn on the spindle...Ch. 8.6 - What G-code designates IPM feed rate mode? IPR...Ch. 8.6 - What is the purpose of a clearance plane in CNC...Ch. 8.6 - What is the purpose of work coordinate systems?Ch. 8.6 - Briefly define linear interpolation.Ch. 8.6 - If during the last operation on a part, a G1 code...Ch. 8.6 - Briefly describe the use of I and J for the arc...Ch. 8.6 - Write two blocks of code that could be used to...Ch. 8.6 - Briefly explain the difference between rigid and...Ch. 8.6 - Define the initial plane for a canned drilling or...Ch. 8.6 - A G98 in a canned cycle sets the return point to...Ch. 8.6 - A _____ code is used to cancel a canned cycle.Ch. 8.6 - What two codes are used to activate automatic...Ch. 8.6 - What two codes are used to activate automatic...Ch. 8.6 - What code is used to cancel automatic cutter...Ch. 8.7 - Which must be set first, a work offset or a tool...Ch. 8.7 - What mode is used to manually enter programs into...Ch. 8.7 - What is the process called when a program is sent...Ch. 8.7 - Explain what may occur that makes it necessary to...Ch. 8.7 - Explain the purpose of homing.Ch. 8.7 - What is the process called when a new program is...Ch. 8.7 - What are two actions that can be taken during the...Ch. 8.7 - When automatic cutter radius compensation is used...Ch. 8.7 - Which machine mode allows short, temporary program...Ch. 8.7 - Which machine mode is used to run the machine...Ch. 8.7 - What are the two controls on the machine's control...Ch. 8.7 - What control panel feature can be used to slow a...Ch. 8.8 - Prob. 1RQCh. 8.8 - Prob. 2RQCh. 8.8 - What are the three primary steps in creating a CNC...Ch. 8.8 - Prob. 4RQCh. 8.8 - What is the definition of entity?Ch. 8.8 - Why should a toolpath be verified on the screen of...Ch. 8.8 - What is a post-processor used for?Ch. 8.8 - What is it called when mutiple touching entities...Ch. 8.8 - What type of cutting tool is usually used for...
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- If a G1 code command is programmed partway through a machining operation, but no F-value is given in that block, what feed rate will be used?arrow_forwardIn the FILLET command, when selecting the objects to fillet, holding down the <Shift> key: a. Allows you to remove objects from the selection set b. Puts a 0 radius corner at the intersection of the two objects c. Allows you to select additional cutting edges d. Allows you to extend objects to the cutting edgesarrow_forward2. Write a complete program to mill around the part. The endmill is .500 diameter, and you want to leave .010 stock for a finish pass. Enter a diameter offset number (Dn) command for tool DIAMETER Geometry of .520 for machining a roughing pass around part. And then define another pass around part using the same program coordinates but a different diameter offset number (Dn), and enter in the correct diameter offset value of .500 to machine part to the finish size. TOOL 1 has 0.520 in D21 and 0.500 in D01 Tool Speed (rpm) Feed (ipm) Operation Finish outside contour, x .50 deep Tooling 1 .5D endmill 1200 6. 25 R.25 2 PL. R .50 2.00 XO YO 4.0 SO. 1.0 SQ. 5 DA. EM 1.250- X-2.5 Y-2.0 START POINTarrow_forward
- Which of the following is true about machine home, part origin, and tool change position? (choose all that apply) Machine tool home is a position set once by the machine manufacturer. Part origin is set by the programmer. All subsequent relative programmed tool movements are measured from part origin. Tool change position is set by the setup person.arrow_forwardWhat is the purpose of a clearance plane in CNC programming and milling?arrow_forwardWhen setting up a machine to run a program that will use TNRC, what settings must be entered in the offset pages in order for the TNRC to work properly?arrow_forward
- 6. Write one block of code to perform the indicated operation. Assume the location is X2.0, Y2.0, and the depth is Z-1.5 for each operation. 1) Drill with dwell of 0.2 seconds 2) Peck drilling cycle with a 0.15" peck depth 3) Chip breaker with a 0.15" peck and full retract every 0.6" 4) RH tapping cycle for 14-16 NC thread; define a spindle speed and feed 5) Bore a hole with the tool being retracted manuallyarrow_forwardA programmable indexing fixture creates a fourth axis called a ________ __________ that is similar to a rotary table used on a manual milling machine.arrow_forwardWrite a CNC part program to for cutting a sheet metal part for fabrication as shown in thefigure below. The raw material used is a 2.5mm Mild Steel Plate and is positioned to the bedwith a 5.0mm offset. Use ncviewer and show imagesarrow_forward
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