Find all the study resources for Automation Production Systems and Computer- Integrated Manufacturing by Groover Mikell P. Share to: Automation, production systems, and computer-integrated manufacturing / Mikell P. Groover. View the summary of this work. Bookmark. Nov 11, Download Automation, Production Systems, and Computer-Integrated Manufacturing (3rd Edition) PDF Full Ebook Free. 1. Download.
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A revised edition was published in with a change in title to Automation, Production Systems, and Computer-Integrated Manufacturing. Additional topics. Production. Systems, and. Computer Integrated. Manufacturing. The additional pages expanded the coverage of top- res like industrial robotics, programmable. Download Automation, Production Systems, and Computer-Integrated Manufacturing By Mikell P. Groover – Automation, Production Systems and.
It covers all the major cutting-edge technologies of production automation and material handling and how these technologies are used to construct modern manufacturing systems. A quantitative approach provides numerous equations and example problems for instructors who want to include analytical and quantitative material in their courses. These statements list the practical meanings of the equations and guidelines regarding applications. Groover Free? You all must have this kind of questions in your mind.
By contrast, continuous path systems are capable of continuous simultaneous control of two or more axes, thus providing control of the tool trajectory relative to the workpart.
Answer: Linear interpolation is the capability to machine along a straight-line trajectory that may not be parallel to one of the worktable axes. It is important in NC because many workpiece geometries require cuts to be made along straight lines to form straight edges and flat surfaces, and the angles of the lines are not be parallel to one of the axes in the coordinate system.
Answer: In absolute positioning, the workhead locations are always defined with respect to the origin of the NC axis system. In incremental positioning, the next workhead position is defined relative to the present location. Answer: CNC is an NC system whose machine control unit is a dedicated microcomputer rather than a hardwired controller, as in conventional NC.
Answer: The ten features and capabilities identified in the text are 1 storage of more than one part program, 2 various forms of program input, such as punched tape, magnetic tape, floppy diskette, RS communications with external computers, and manual data input, 3 program editing at the machine tool, 4 fixed cycles and programming subroutines macros , 5 linear and circular interpolation, 6 workpiece positioning features for setup, 7 cutter length and size compensation, 8 acceleration and deceleration calculations when the cutter path changes abruptly, 9 communications interface, and 10 diagnostics to detect malfunctions and diagnose system breakdowns.
Answer: Distributed numerical control is a distributed computer system in which a central computer communicates with multiple CNC machine control units. It evolved from direct numerical control in which the central computer played the role of the tape reader, downloading part programs one block at a time.
Also shop floor data is collected by the central computer to measure shop performance. Answer: As defined in the text, a machining center is a machine tool capable of performing multiple machining operations on a single workpiece in one setup. The operations involve rotating cutters, such as milling and drilling, and the feature that enables more than one operation to be performed in one setup is automatic tool-changing.
Answer: The six part characteristics identified in the text are the following: 1 batch production, 2 repeat orders, 3 complex part geometry, 4 much metal needs to be removed, 5 many separate machining operations on the part, and 6 the part is expensive.
Name three of the six examples listed in the text. Answer: The six non-machine tool applications listed in the text are 1 electrical wire-wrap machines, 2 component insertion machines, 3 drafting machines x-y plotters , 4 coordinate measuring machines, 5 tape laying machines for polymer composites, and 6 filament winding machines for polymer composites. Answer: The text lists the following 11 advantages: 1 nonproductive time is reduced, 2 greater accuracy and repeatability, 3 lower scrap rates, 4 inspection requirements are reduced, 5 more-complex part geometries are possible, 6 engineering changes can be accommodated more gracefully, 7 simpler fixtures are needed, 8 shorter manufacturing lead times, 9 reduced parts inventory, 10 less floor space required due to fewer machines, and 11 operator skill requirements are reduced.
Answer: Four disadvantages are identified in the text: 1 higher investment cost because NC machines are more expensive than conventional machine tools, 2 higher maintenance effort due to greater technological sophistication of NC, 3 part programming is required, and 4 equipment utilization must be high to justify the higher investment, and this might mean additional work shifts are required in the machine shop. Answer: The two types of positioning control systems used in NC systems are open loop and closed loop.
An open-loop system operates without verifying that the actual position achieved in the move is the same as the programmed position. Digital computer 3.
Plotters, printers, and other output devices 4. Communicate with the CPU 2.
Continuously generate a graphical image 3. Provide digital descriptions of the image 4. Translate user commands into operating functions 5. Host and terminal Mainframe serves as host for graphics terminals The original configuration in the s and s when CAD technology was first developing 2. Engineering workstation Stand-alone computer system dedicated to one user Often networked for sharing data and plotters 3.
Manufacturing planning 2. Identify customer requirements 2. Identify product features needed to meet customer requirements 3.
Determine technical correlations among product features 4. Develop relationship matrix between customer requirements and product features 5. Comparative evaluation of input customer requirements 6.