Roll pass design course: contents
ROLL PASS DESIGN IN CONTINUOUS BAR MILLS AND WIRE ROD BLOCKS
Lesson 1: The 'nuts and bolts'
1.1 Some terminology
1.2 Passes and bars
1.3 Deformations and sequences
1.4 Throughout the mill
Lesson 2: The mills
2.1 Structures and schematizations
2.2 A 'nominal' Odyssey
2.3 Mechanical matrioska
2.4 Designer choices
Lesson 3: Actions and reactions
3.1 The laws
3.2 What happens
3.3 Spread
3.4 Reduction and elongation
Lesson 4: Some mathematical premises
4.1 Hot and cold dimensions
4.2 Formulae you can't ignore
4.2.1 Square dimensions
4.2.2 Oval radius
4.2.3 Round area
Lesson 5: CBM semi-project operations (I)
5.1 Objectives and steps
5.1.1 Zero/One suffixes
5.2 Semi-project
5.2.1 The necessary data
5.2.2 Calculating the Lambdas
Lesson 6: CBM semi-project operations (II)
6.1 More about the Lambdas
6.1.1 Square-to-square Lambda
6.1.2 Determining the LamK distribution
6.1.3 Determining square dimensions
6.2 "Are you gonna stay a square?"
Lesson 7: CBM semi-project operations (III)
7.1 Diamonds or ovals?
7.1.1 How to choose
7.2 Into the sequence
7.2.1 Splitting the LamKs
Lesson 8: CBM semi-project operations (IV)
8.1 Intermediate pass area
8.2 Calculating diamond dimensions
8.2.1 A numerical example
Lesson 9: CBM semi-project operations (V)
9.1 Calculating oval dimensions (SQ-OV-SQ sequences)
9.1.1 A numerical example
9.2 Calculating FR and RD dimensions
9.2.1 A numerical example
Lesson 10: CBM semi-project operations (VI)
10.1 Ovals for OV-FR and OV-RD deformations
10.1.1 Calculating oval dimensions (OV-FR deformation)
10.1.2 Calculating oval dimensions (OV-RD deformation)
10.2 Roll gaps in the stretching mill
Lesson 11: CBM semi-project operations (VII)
11.1 The roughing mill
11.1.1 A numerical example
11.2 The finishing mill
11.2.1 Finishing round
11.2.2 Leader oval
11.2.3 A numerical example
Lesson 12: CBM verification operations (I)
12.1 The importance of being spread
12.1.1 Reference to flat rolling
12.1.2 Non-geometrical parameters
12.1.3 The Suppo-Izzo modifications
12.2 Pass overfilling and pass underfilling
Lesson 13: CBM verification operations (II)
13.1 You must remember this...
13.2 Calculating the limits
13.2.1 Limits for diamond (SQ-DI-SQ sequences)
13.2.2 Limits for oval (SQ-OV-SQ sequences)
13.2.3 Limits for oval (all other sequences)
13.2.4 Limits for definite passes
Lesson 14: CBM verification operations (III)
14.1 An example: SQ-OV deformation
14.1.1 Limits for SQ-OV deformation
14.1.2 Mean heights for SQ-OV deformation
14.1.3 Oval bar exit width b1r
Lesson 15: CBM verification operations (IV)
15.1 An example (cont. from lesson 14)
15.1.1 Case of pass underfilled
15.1.2 Case of pass overfilled
15.1.3 SQ-OV deformation verified
15.2 OV-SQ deformation
15.2.1 Limits for OV-SQ deformation
15.3 Parenthesis about OV area calculation
Lesson 16: CBM verification operations (V)
16.1 An example (cont. from lesson 15)
16.1.1 Mean heights for OV-SQ deformation
16.1.2 Square bar exit width b2r
Lesson 17: Rolling loads (I)
17.1 The major items
17.2 Roll pressure
17.2.1 The Full Monty
Lesson 18: Rolling loads (II)
18.1 Various methods
18.2 Roll pressure (a simplified approach)
18.2.1 The Half Monty
18.2.2 The graphical method
18.2.3 An example with the graphical method
18.3 Force
18.4 Torque
18.5 Power
Lesson 19: Computer processing (I)
19.1 The DESFILE program
19.1.1 Input data
19.1.2 Output data
19.1.3 Interpreting some output data
19.1.4 Slip
Lesson 20: Computer processing (II)
20.1 Interpreting more output data
20.1.1 Bite angle and contact angle
20.1.2 Max square rollable in a SQ pass
Lesson 21: Computer processing (III)
21.1 Considerations about rolling temperature
21.2 The mathematical approach
21.3 The empirical approach
21.3.1 The square root curve
2.3.2 Exploiting the empirical method
Lesson 22: Roll pass design software (I)
22.1 The Linebow toolbox
22.2 Single-stand and double-stand mills
22.2.1 SINPASS
22.2.2 TWOPASS
22.2.3 TWOPASS special versions
Lesson 23: Roll pass design software (II)
23.1 Multi-stand mills
23.1.1 The DES- family
23.1.2 The BY- family
23.1.3 The secret doors
Lesson 24: Roll pass design software (III)
24.1 Multi-stand mills only using ovals and rounds
24.1.1 2ROUND
24.1.2 3ROUND
24.1.3 ROUNDBY
24.1.4 ALLROUND
24.1.5 A special feature
Lesson 25: Wire rod blocks (I)
25.1 The Ghost in the Machine
25.2 Mechanics
25.3 Kinematics
25.4 Dynamics
25.5 Roll pass design for WRBs
25.5.1 What happens in CBMs
25.5.2 What happens in WRBs
Lesson 26: Wire rod blocks (II)
26.1 Ghostbusters!
26.2 BYBLOCK
26.2.1 All things to all (roller)men?
26.3 How to regain ten thousand bucks a month
Lesson 27: Wire rod blocks (III)
27.1 Here is the problem
27.2 And here's the solution
27.3 The planetary system
27.3.1 The Sun
27.3.2 The planets
27.3.3 The satellites
Lesson 28: Wire rod blocks (IV)
28.1 The 'lever' effect
28.2 The last two stands
28.3 Why did we say 'malpractice'?
Lesson 29: To draw is human, to design divine (I)
29.1 You shall design with pleasure
29.2 The creative challenge
29.3 "How I did it" (Frankenstein jr.)
29.3.1 Feelings
29.3.2 Design of SQ-OV-SQ sequences
29.3.3 Design of RD-OV deformations
29.3.4 Mathematical crossroads
Lesson 30: To draw is human, to design divine (II)
30.1 And you shall draw with CAD
30.2 Dimensions for each pass
30.2.1 BSQ (3 data)
30.2.2 BOX (4 data)
30.2.3 DI (3 data)
30.2.4 SQ (3 data)
30.2.5 OV and LOV (2 data)
30.2.6 FR (just the side)
30.2.7 RD and FIN (just the diameter)
30.3 Numerical list
30.4 Oval dimensions
30.5 Round dimensions