UBET working on mM compatible PC`s. User`s manual R.J.J.M.
Contents
1. ADVF C C1 CHAMOD CLEAR D D1 D2 11 12 13 14 15 10 101 102 103 L L1SB L2 L2SB L3 14 L5 M P P1 P2 P3 PFGKS PLOT Q Q1 Q2 Q3 04 Q5 06 QMAX 8 581 4 82 83 844 85 56 57 T T1 T2 T3 T4 T5 T6 T7 X X1 W eindhoven university of technology university of bath2. APPENDIX 19 When the geometry input is given the remaining parameters of the process like the penetration yield stress etc have to be set For defining the penetration type 12 PEN 10 10 mm of penetration In order to view the process parameters type 13 DATA view default data The program will respond with the default values of the friction factor stress die velocity type of process material and process temperature For changing one of the above type the first three letters of the item followed by the new value for instance 14 PRO COLD set process to cold 15 VEL 10 set die velocity to 10 mm sec When the data are correct then the UBET analysis can start type Here is chosen to use the UBET advance die filling 16 ADV The program responds with REQUIRED NUMBER OF INCREMENTS type 17 10 process will be simulated in 10 steps followed by 18 GO start calculations The program prompts LEVEL OF SUBDIVISION OK Y N and shows forging plus subdivision into elements on the screen Type 19 Y level of subdivision ok or 19 N level of subdivision not ok the program will generate more elements After each step the program prompts CONTINUE Y N type 20 Y program will continue 20 N program will abort advance mode eindhoven university of technology _ university of bath APPENDIX 20 As a result of each step the program will plot the new geometry
3. be changed by MATERIAL followed by the chosen material LCS MCS HCS or EN8 The process temperature can be changed by TEMPERATURE followed by its new value in degrees Celsius Enclosure 1 contains a survey of the commands used in the UBET programs Enclosure 2 lists the input for the analysis of one specific forging APPENDIX 8 3 1 Exit from UBET At any stage in the program it s possible to stop with the program or program part by typing in the command EXIT Except when the computer is performing calculations If for instance you are working in the advance die filling mode and you want to stop then you have to enter EXIT twice once for leaving the advance die filling mode and once for leaving the main program 4 Possible forging analysis 4 1 Forging load prediction After entering the geometries and other data forging analysis can be performed but prior to the load prediction it s necessary to divide the billet into the required number of elements This can be done automatically by the command DIVIDE In return this command will display the number of elements on the screen The number of elements can be increased with the command HIGHER or decreased with the command LOWER which also display the number of elements on the screen When a satisfying level of subdivision is reached load calculation is initiated by the command LOAD 4 2 Flowlines prediction Prediction of the possible metal flow is onl
4. to this a short usermanual has been included eindhoven university of technology university of bath APPENDIX 3 2 ET Installation After a period of becoming familiar with the UBET program the author s first task was to find out which of the existing source files still were necessary and which of them were out of date This in order to find out how to compile and link the source files into an executable file After sorting out all the source files it was possible to create several different programs The differences between them involved for instance other implemented features or improved graphics In order to separate them each one is characterized with a name which is related to its contents PRELIMINARY UBET UBETPREL the most preliminary PC UBET as developed at the TUD and installed by Per Hansen ORIGINAL UBET UBETORIG the updated version main differences are about some changes in the graphic representation of the output EXISTING UBET UBETEXIS closely related to the former but including wear prediction programmes SONG BIN UBET UBETSB in this program the optimisation routine is written by Song Bin instead of the optimization written by Dr Osman eindhoven university of technology university of bath APPENDIX 4 For the last two versions of UBET the author has made installation discs with an installation program in order to 1 separate the necessary sourcefiles 2 compile
5. 1 PROFORT P2 PROFORT P3 PROFORT PLDT PROFORT Q PROFORT 01 PROFORT Q2 PROFORT Q3 PROFORT 04 PROFORT Q5 PROFORT Q6 PROFORT QMAX COPY 0BJ C UBETEXIS FOR OBJ DEL 0BJ PROFORT REV PROFORT S PROFORT S1 PROFORT 518 PROFORT S2 PROFORT S2R PROFORT S3 PROFORT S3R PROFORT S4 PROFORT 548 PROFORT S5 PROFORT 558 COPY 0BJ C UBETEXIS FOR OBJ DEL 0BJ PROFORT S6 PROFORT 568 PROFORT 57 PROFORT 578 PROFORT SR PROFORT T PROFORT T1 PROFORT T2 PROFORT T3 PROFORT T4 PROFORT T5 PROFORT T6 PROFORT T7 PROFORT V PROFORT X PROFORT X1 eindhoven university of technology university of bath APPENDIX 25 COPY 0BJ C UBETEXIS FOR OBJ DEL 0BJ CD 0BJ SET LIB C UBETTOOL LIB RENAME AAI 0BJ ADVF OBJ LINK FMAKE1 LNK pfgks gks profort se 1024 stack 20000 LINK RMAKE LNK pig s gks profort se 1024 stack 20000 RENAME ADVF OBJ ADVM OBJ LINK FMAKE LNK pfgks gks profort se 1024 stack 20000 COPY EXE C UBETEXIS DEL EXE COMPILING AND LINKING FINISHED EXECUTABLE EXE FILES REV ADVM ADVF THIS INSTALLATION HAS CHANGED THE PATH SO YOU BETTER REBOOT YOUR SYSTEM In this bat file link files are used for linking the object files into an executable program The file fmake Ink contains the following ADVM C C1 CHAMOD CLEAR D D1 D2411 12 13 14 15 10 101 102 1I03 L L1 12 13 14 L5 M P P1 P2 P3 PFGKS PLOT Q Q01 92 03 04 05 Q6 QMAX 84 514 824 53 54 85 86 87 T T1 T2 T3 T4 T5 T6
6. ECHO GO ON strike any key ECHO STOP press control C ECHO ON CLS C CD MD UBETSB CD UBETSB MD FOR CD FOR MD FORTRANF MD OBJ INSERT DISC 1 AND STRIKE ANY KEY ECHO ON eindhoven university of technology university of bath APPENDIX 28 COPY A LNK C UBETSB FOR OBI COPY A FOR FORTRA F FOR C UBETSB FOR FORTRANF INSERT DISC 2 AND STRIKE ANY KEY COPY A FOR FORTRANF FOR UBETSB FOR FORTRANF COPY A FOR OBJ OBJ C UBETSB FOR OBJ COPY DATAFLS C UBETSB ECHO OF COMPUTER NOW STARTS WITH COMPILING AND LINKING ESTIMATED TIME ON A PC XT 4 HOURS IN THE MEAN TIME YOU DON T HAVE TO DO ANYTHING path C UBETTOOL CD CD UBETSB FOR FORTRANF PROFORT AAT PROFORT C PROFORT C1 PROFORT CHAMOD PROFORT D PROFORT D1 PROFORT D2 PROFORT D2R PROFORT I1 PROFORT 12 PROFORT 13 PROFORT I4 PROFORT I5 PROFORT IO PROFORT 101 COPY 0BJ C UBETSB FOR OBJ DEL 0BJ PROFORT 102 PROFORT I03 PROFORT IOR PROFORT L eindhoven university of technology university of bath APPENDIX A 29 PROFORT 1158 PROFORT 1258 PROFORT L2 PROFORT L3 PROFORT L4 PROFORT L5 PROFORT LR PROFORT M PROFORT P PROFORT P1 PROFORT P2 PROFORT P3 COPY 0BJ C UBETSB FOR OBJ DEL DBJ PROFORT PLOT PROFORT 0 PROFORT 01 PROFORT 02 PROFORT Q3 PROFORT Q4 PROFORT Q5 PROFORT Q6 PROFORT QMAX PROFORT REV PROFORT S PROFORT S1 PROFORT 518 PROFORT S2 PROFORT S2R
7. PROFORT S3 PROFORT 538 COPY 0BJ C UBETSB FOR OBJ DEL 0BJ PROFORT S4 PROFORT 548 PROFORT S5 PROFORT S5R PROFORT S6 PROFORT 568 PROFORT S7 PROFORT 578 PROFORT SR PROFORT T PROFORT 1 PROFORT T2 PROFORT T3 PROF RT T4 PROFORT T5 PROFORT T6 PROFORT T7 PROFORT V PROFORT X PROFORT X1 APPENDIX 30 COPY 0BJ C UBETSB FOR OBJ DEL 0BJ CD CD OBJ SET LIB C NUBETTOOLALIB RENAME ADVF OBJ LINK OFMAKE1 LNK pfgks gks profort se 1024 stack 20000 LINK RMAKE LNK pfgks gks profort se 1024 stack 20000 RENAME ADVF OBJ ADVM OBJ LINK FMAKE LNK pfgks gks profort se 1024 stack 20000 COPY EXE C UBETSB DEL EXE COMPILING AND LINKING FINISHED EXECUTABLE EXE FILES REV ADVM ADVF THIS INSTALLATION HAS CHANGED THE PATH SO YOU BETTER REBOOT YOUR SYSTEM In this batfile link files are used for linking the object files into an executable program The file rmake Ink contains the following REV C C1 CHAMOD CLEAR D D1 D2R411 124 13 14 15 1IOR 101 102 103 LR L1SB L2 L2SB L3 L4 L5 M P P1 P2 P3 PFGKS PLOT SR 51R S2R S3R S4R S5R S6R S7R T T1 T2 T34 T4 T5 T6 T7 X X1 The file fmake Ink contains the following ADVM C C1 CHAMOD CLEAR D D1 D24 11 12 13 14 15 10 101 102 103 L L1SB L2 L28B 13 L4 L5 M P P1 P2 P3 PFGKS PLOT Q Q1 Q2 Q3 Q44 05 Q6 QMAX 8 814 52 83 84 585 56 87 T T14 T2 T3 T4 T5 T6 T7 X X1 W PEPLOT PLOTPE PTABLE1 The file fmakel Ink contains the following
8. T74 X X1 W PEPLOT PLOTPE PTABLE1 The file fmakel lnk contains the following ADVF C C1 CHAMOD CLEAR D D1 D24 11 12 134 14 15 10 101 102 103 L 1L1 1L2 1L3 1L4 L5 M P P1 P2 P3 PFGKS PLOT Q4 Q1 02 03 Q4 05 Q6 QMAX 8 814 82 834 54 85 86 57 T T1 T2 T3 T4 T5 T6 T7 X X1 W The file rmake Ink contains the following REV C C1 CHAMOD CLEAR D D1 D2R4 11 12 13 14 15 10R 101 102 103 LR L14 1L24 1L3 1L4 L54 M P P1 P2 P3 PFGKS PLOT SR S51R S2R 83R S4R S5R S6R S7R T T1 T2 T34 T4 T5 T6 T7 X X1 eindhoven university of technology university of bath APPENDIX NCL 32 BETSB The necess Song Bin UBET are AAI FOR C CHAMOD FOR D D2 FOR D2R 12 FOR 13 15 FOR IO 102 FOR 103 L FOR L1SB 258 FOR L3 L5 FOR LR P FOR P1 P3 FOR PLOT Q1 FOR Q2 Q4 FOR Q5 QMAX FOR REV S1 FOR SIR S2R FOR S3 S4 FOR S4R S5R FOR S6 S7 FOR S7R T FOR 1 T3 FOR T4 T6 FOR T7 X FOR X1 26 FOR FOR FOR FOR FOR source files for compiling and linking of the Except these fortran source files you also need the following object files OBJ OBJ CLEAR OBJ PLOTPE PLOT OBJ PTABLEI PEPLOT OBJ And of course you need the libraries PROFORT LIB PFGKS LIB GKS LIB APPENDIX 27 For automatic compiling linking and installing the Song Bin UBET the following bat file is used SBINST BAT ECHO This batch file is meant to install compile and link the ECHO Song Bin UBET program ECHO So with use of the SONG BIN optimiser
9. TERIAL MODIFY prompts BIL Input edit billet co rdinates On exit the billet volume is showed prompts BOT Input edit bottom die codrdinates Calculate the final cavity volume i e volume enclosed by the dies for a given penetration Display the current process variables which are used in load calculations Create a reasonably fine subdivision and reset the approximation level to the default Draw the available outlines onto a graphics terminal Stops the program Display the predicted flowlines inside the forging prompts F Friction factor A new subdivision is generated with an approximation level which is higher than that of the current level Calculate forging load A new subdivision is generated with an approximation level which is lower than that of the current level prompts MATERIAL Billet material Modify the recent subdivision for lesser number of regions but in the current level of approximation eindhoven university of technology university of bath APPENDIX 12 MOVE prompts MOVE Move TOP or BOTTOM die or BILLET co rdinates a distance d up and down Format MOVE co rdinates d NEW Prepare the program for receiving a new component geometry no changes in the process variables will take place PENETRATION prompts P Total die travel for an incremental solution PLOT Direct the available outlines to the graph plotter This command i
10. UBET working on IBM compatible PC s User s manual R J J M Sniekers March 90 VF code D1 D2 D3 WPA nr 0864 APPENDIX 1 CONTENTS e Contents 1 Introduction 2 UBET Installation 2 1 Installing UBETTOOL 2 2 Installing UBET programs 2 3 Necessary changes to the PC system 3 Running Ubet 3 1 Exit from UBET 4 Possible forging analysis 4 1 Forging load prediction 4 2 Flowlines prediction 4 3 Advance die filling oOo oOo OO A A N 4 4 Die billet interfacial pressure pont c Enclosure 1 Command s description J Enclosure 2 Example of input Enclosure 3 Listing of batch files etc 3 1 UBETEXIS 3 2 UBETSB N O eindhoven university of technology university of bath APPENDIX 2 1 Introduction Prof A N Bramley Dr Osman and their coworkers at the University of Bath developed the UBET program for VAX VMS and SUN computers The PC version for UBET which was developed at the Technical University of Denmark was installed by Per Hanssen from the TUD during his stay in Bath After UBET was installed on the PC at the University of Bath several people have been working on the UBET program in order to create new features for the program Due to this fact there are at the moment several different source files for the current working versions of UBET In this paper the author wants to give an introduction of the use of UBET In addition
11. ance type 4 THATCHER if the operator s name is Thatcher The program will respond with a prompt of GO The geometries of the dies and the billet have to be supplied type 5 BIL inputting billet geometry eindhoven university of technology university of bath APPENDIX 18 prompt of BIL wil follow Now the program is ready for input type 6 1 0 0 0 0 C pointno 1 x and y coordinate centerline marker 2 0 0 40 0 atthis position the flash starts 3 150 400 frst point in contact with the top die 4 300 400 again the start of free surface 5 300 0 0 B fist point in contact with the bottom die E Exit of billet input mode Now the billet geometry is defined next will be the bottom die Type 7 BOT inputting bottom die geometry A prompt of BOT will appear on the screen type 8 1 00 0 0 respectively pointnumber x and y coordinate 2 30 0 0 0 3 40 0 10 0 4 60 0 10 0 E Exit of bottom die input mode After the bottom die geometry the top die geometry has to be defined type 9 TOP inputting top die geometry A prompt of TOP will appear on the screen type 10 1 0 0 55 0 respectively pointnumber x and y coordinate 2 15 40 0 3 30 0 40 0 4 40 0 30 0 5 60 30 0 E Exitoftop die input mode The component is fully defined and can be saved by giving the command 11 WRITE COMPONENT COMPONENT is the name of the component eindhoven university of technology university of bath
12. and link the executable file 3 provide the necessary datafiles 4 separate source object and executable files In enclosure 3 there is a list of the necessary files for UBETEXIS and UBETSB In addition listings of the installation files are given Before installing UBET UBETTOOL must be installed which is a directory containing 1 necessary graphics drivers for running UBET like INIT VDI 2 the compiler PROFORT EXE and the linker LINK EXE 3 installation files for the different UBET programs 4 thefortran libraries PROFORT GKS and PFGKS 2 1 Installing UBETTOOL The root directory of the first UBETTOOL disc contains a file INSTTOOL BAT Copy this file to the rootdirectory of the harddisc and activate INSTTOOL after changing the current drive and directory to C gt After this the installation file automatically performs the necessary commands The only action from the operator is changing discs when the computer prompts for it eindhoven university of technology university of bath APPENDIX 5 2 2 Installing UBET program s When the operator asks for a directory of UBETTOOL there are two batchfiles for installing different UBET programs EXISINST BAT SBINST BAT Installing one of the UBET programs is simply done by activating the corresponding batchfile and providing the discs the computer prompts for 2 3 Necessary changes to the PC system After the installation of UBETTOOL two system files ha
13. atic compiling linking and installing the existing UBET the following bat file is used EXISINST BAT CLS ECHO OFF E 0 HS ECHO This batch file is meant to install compile and link the ECHO existing UBET program ECHO So without use of the SONG BIN optimiser ECHO GO ON strike any key ECHO STOP press control C CD MD UBETEXIS CD UBETEXIS MD FOR CD FOR MD FORTRANF MD OBJ INSERT DISC 1 AND STRIKE ANY KEY ECHO ON APPENDIX 23 COPY A LNK C 2 2 pe FV F0R C UBETEXIS FOR FORTRANF CLS INSERT DISC 2 AND STRIKE ANY KEY 0 ON COPY A FOR FORTRANF UB ETEXIS FOR FORTRANF COPY A FOR OBJ C UBET XIS FOR OBJ COPY A A DATAFLS C UBETEXIS CLS ECHO ECHO ECHO COMPUTER NOW STARTS WITH COMPILING AND LINKING ECHO ESTIMATED TIME ON A PC XT 4 HOURS ECHO IN THE MEAN TIME YOU DON T HAVE TO DO ANYTHING ECHO ON B C UBETTOOL CD VOBETEXTS FOR FORTRAN FORT A PROFORT C PROFORT C1 PROFORT CHAMOD PROFORT D PROFORT D1 PROFORT D2 PROFORT D2R PROFORT I1 PROFORT I2 PROFORT I3 PROFORT I4 PROFORT I5 COPY 0BJ C UBETEXIS FOR OBJ DEL 0BJ PROFORT IO PROFORT 101 PROFORT 102 PROFORT 103 PROFORT IOR PROFORT L PROFORT L1 eindhoven university of technology university of bath APPENDIX 24 PROFORT L2 PROFORT L3 PROFORT L4 PROFORT L5 PROFORT LR COPY 0BJ C UBETEXIS FOR OBJ DEL 0BJ PROFORT M PROFORT P PROFORT P
14. elocity VOLUME Show billet volume WRITE prompts FILE NAME Copy co rdinates and reference into the specified data file INPUT EDITOR QUALIFIERS This module is used for input and or edit of the outlines co rdinates The input mode is considered the normal mode unless an editor qualifier is entered This technique avoids the use of a selective file copying procedure and therefore the input editor pointer can go upward or downward at will Co rdinates should be entered in a sequencial manner starting from the lowermost point on the center line The editor qualifiers have their special meaning and a qualifier is processed only if it is proceeded by a point number No action will be taken if the command is out of order for example the user requires a non existent point However the editor gives an explanatory message which describes the action taken eindhoven university of technology university of bath APPENDIX 15 NOMENCLATURE Point number x X codrdinate Y codrdinate m Point marker it denotes the next billet surface neighbour with for center for top die B for bottom die F for flash INPUT MODE n xv Top or bottom die co rdinates n Ah Om Billet co rdinates It is not necessary to supply the marker if the preceding point carries the same marker EDITOR QUALIFIERS D n Delete point number n X n x Replace the X co rdinate of po
15. he negative velocity change Finally output results are forging load for a velocity change of 1 0 96 on the region the local surface pressure and the contact area eindhoven university of technology university of bath APPENDIX 10 1 COMMANDS DE TION ADVANCE prompts ADV Simulate the forging process from start to end in an incremental manner This module has a set of sub commands through which the output features are set The sub commands are REPORT promts REP this command has the following parameters GO The main program command report is invoked at every increment MESH 10x10 mesh is imposed on the billet cross section and the final grid co rdinates and the strain experienced by every point area amended to the output file STRAIN The regional average strain values are directed to the report file DISPLAY display current component geometry and dies position at the beginning of every step MESH Impose and display a 10x10 mesh with the current component geometry and dies position GO parameters are set advance dies SIMULATE The process from start to end is simulated This can only be used if the GO command is succesfully executed EXIT return to main commands mode eindhoven university of technology university of bath APPENDIX 1 BILLET BOTTOM CAVITY DATA DIVIDE DRAW EXIT FLOWLINES FRICTION HIGHER LOAD LOWER MA
16. ie geometries and second it s possible to input new component and die geometries Reading an existing file is possible with the command READ Making new input can be done with the commands BILLET BOTTOM and TOP for respectively billet bottom die and top die co rdinates After making new input this can be saved by writing it into a datafile with the command WRITE eindhoven university of technology university of bath APPENDIX 7 The next stage in order to let the program be able to perform calculations will be the definition of the displacement of the top die by using the command PENETRATION or its abbreviated form PEN followed by the displacement in millimeters Besides these specific informations geometries and displacement UBET requires other parameters such as friction factor process type material properties and die velocity Those four parameters are internally imbedded By using the command DATA you can view the default data If any changes are necessary you can change the friction factor by typing FRI followed by its new value range is 0 0 to 1 0 The die velocity can be changed by VEL followed by its new value in mm sec The stress relation can be changed by STRESS followed by A and B from the relation o B e The process type can be changed by PRO followed by its new type hot cold or normal If the process type is hot then you have to set the following extra commands The material can
17. int n by Y n y Replace the Y codrdinate of point n by M n m Replace the marker of point n by m M n lt CR gt CR Delete the marker of point n L n1 n2 List points in the range n1 n2 S n x y m Shift points starting from n one step forward and replace the coordinates and marker of point n by x y m Exit Exits editor program returns to main menu eindhoven university of technology university of bath APPENDIX 16 MATERIAL LIBRARY EN8 800 1300 degree HCS High Carbon Steel 900 1200 degree C LCS Low Carbon Steel 900 1200 degree C MCS Medium Carbon Steel 900 1200 degree C eindhoven university of technology university of bath APPENDIX 17 NCL 2 EXAMPLE OF INPUT In this enclosure a full description is given of the input of one specific component shown A SOTHO figure 1 component First thing to do is to start the UBET program Change drive and directory to those where the UBET program is stored type 1 C program is stored on drive C CD UBETEXIS in the directory UBETEXIS Start the program itself type 2 ADV the forward solution of UBET is started Secondly the input has to be given The program prompts with PLOTTER CONNECTED Y N 7 3 SotypeN lt gt No plotter connected The program will respond with REFERENCE for inst
18. on the screen together with the resulting die force In addition for each step an output file is written INC1 INC2 INC3 etc When the operator wants to run the analysis again with different data it s not necessary to define the geometry of billet and dies again With the READ command an already existing file can be read Type 21 READ COMPONENT COMPONENT is the name of the component And then define the new data Furthermore it s possible to edit an existing file in case a mistake was made while putting in the geometry of for instance the bottom die 22 BOT 233 Y256 Replace Y coordinate of point 2 with 56 All UBET commands are described in enclosure 1 eindhoven university of technology university of bath APPENDIX L ETEXI The necessary source files for compiling and linking of the existing UBET are AAI FOR C CHAMOD FOR D D2 FOR D2R I2 FOR I3 I5 FOR IO 102 FOR IO3 L FOR Ll L3 FOR L4 LR FOR M 1 FOR 2 PLOT FOR Q2 FOR Q3 Q5 FOR Q6 REV FOR 5 SIR FOR 52 S3 FOR S3R S4R FOR S5 S6 FOR S6R S7R FOR SR 1 FOR T2 T4 FOR T5 T7 FOR W X1 FOR FOR FOR FOR FOR FOR FOR FOR Except these fortran source files you also need the following object files CLEAR OBJ PLOTPE PLOT OBJ PTABLEI PEPLOT OBJ And of course you need the libraries PROFORT LIB PFGKS LIB GKS LIB eindhoven university of technology university of bath OBJ OBJ APPENDIX 22 For autom
19. s not available yet PROCESS prompts PROCESS Type of process normal hot or cold PRESS Starts pressure element technique READ prompts FILE Read in available co rdinates and reference from an existent data file created by the same package REFERENCE prompts REFERENCE Change reference eindhoven university of technology university of bath APPENDIX 18 The following data if available are directed to a file which is printed at exit Reference Billet co rdinates Top die co rdinates Bottom die co rdinates Billet volume Number of elemental regions volume change due to approximation Friction factor Die velocity RPM stroke displacement Material flow stress Forging material Forging temperature Process type Penetration and Forging load If the command is repeated during a session only the parameters which have been changed will be appended to the current output file SPEED prompts RPM STROKE then DISPLACEMENT Estimated die velocity according to the working conditions STRESS prompts then B The stress strain or strain rate relation is expressed by STRESS A B Cold forging STRESS B log t Hot forging eindhoven university of technology university of bath APPENDIX 14 TEMPERATURE Prompts T Forging temperature TOP Input edit top die co rdinates VELOCITY Prompts V Die v
20. ve to be changed in order to get proper graphics 1 In the AUTOEXEC BAT the following line has to be added C UBETTOOL INIT_VDI This line initializes the virtual device interface INIT VDI EXE Ino In the CONFIG SYS the following two lines have to be added DEVICE C UBETTOOL VDIDY010 SYS R G DISPLAY DEVICE C UBETTOOL VDI SYS The first line sets the Enhanced Color Display EGA Driver The second line sets the PC Virtual Device Driver eindhoven university of technology university of bath APPENDIX 6 3 Running UBET After installation of a version UBETEXIS or UBETSB you have to change directory to the directory where that version is stored The directory has the same name as the installed Version For starting the ADVANCE mode the EXE file is called ADV typein ADV and in order to start the REVERSE mode EXE file is called REV type in REV lt gt After starting the program in the above way the program will prompt Plotter Connected Enter Y or N Type in N lt gt the program will prompt REFERENCE Anything you type will be accepted but it s very useful to type something that s traceable for instance your name and a number or the name After this a prompt of GO will appear on the screen After this you have to define the specific component and die geometries This can be done in two different ways First it s possible to read an existing file with component and d
21. y operable after the determination of the forging load because flowline calculation demands precalculation of the elemental velocities In order to look at the flowlines type the command FLOWLINES or its abbreviation FLO after the calculation of the load eindhoven university of technology university of bath APPENDIX 9 4 3 Advance die filling This feature predicts a possible metal filling inside a pair of closed dies To use this feature enter ADVANCE or its abbreviation ADV then the program will ask the operator for the required number of increments for instance 5 or 10 and after that return with the prompt GO There are further possibilities inside this feature see the enclosure about UBET commands 4 4 Die billet interfacial pressure In UBET the die billet interfacial pressure can be estimated at any stage after the input of billet geometrie and the modification of the relevantly defaulted parameters To activate the Pressure Element Technique PET the command PRESSURE is used after the prompt of GO and then the program starts asking you the information it needs for performing the necessary calculations such as which friction model which point the element width the velocity change in procents and which die is in contact with the billet at the point After this return information is displayed on the screen followed by calculation of the power consumption in forging the billet for both the positive and t
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