1 - AS 1788.1-1987 ABRASIVE WHEELS - DESIGN, CONSTRUCTION, AND SAFEGUARDING
4 - PREFACE
5 - CONTENTS
7 - SECTION 1. SCOPE AND GENERAL
7 - 1.1 SCOPE.
7 - 1.2 APPLICATION.
7 - 1.3 RELATIONSHIP WITH REGULATIONS.
7 - 1.4 NEW DESIGN AND INNOVATIONS.
7 - 1.5 INTERPRETATIONS.
7 - 1.6 REFERENCED DOCUMENTS.
7 - 1.7 DEFINITIONS.
7 - 1.7.1 Abrasive wheel
7 - 1.7.2 Accompanying documents
7 - 1.7.3 Blotters
7 - 1.7.4 Bonded wheel.
7 - 1.7.5 Chuck
8 - 1.7.6 Cup-back bushing
8 - 1.7.7 Exhaust zones
8 - 1.7.8 Flanges
8 - 1.7.9 Grinding face
8 - 1.7.10 Grinding operations.
9 - 1.7.11 Guard
9 - 1.7.12 Maximum operating speed
9 - 1.7.13 Peripheral speed
9 - 1.7.14 Reducing bush
10 - 1.7.15 Regulating wheel
10 - 1.7.16 Reinforced wheel
10 - 1.7.17 Regulatory Authority
10 - 1.7.18 Rotational frequency
10 - 1.7.19 Shall and should
10 - 1.7.20 Steel rings
10 - 1.7.21 Tape winding (or wire winding)
10 - 1.7.22 Wheel shape
10 - 1.7.23 Wheel speed
11 - SECTION 2. WHEEL SHAPES AND SPEEDS
11 - 2.1 WHEEL SHAPES.
11 - 2.1.1 Straight wheel, Type 1
11 - 2.1.2 Cylinder wheel, Type 2
11 - 2.1.3 Abrasive discs
11 - 2.1.4 Taper-sided wheel, Type 4
11 - 2.1.5 Recessed-one-side wheel, Type 5
12 - 2.1.6 Straight cup wheel, Type 6
12 - 2.1.7 Double recessed wheel, Type 7
12 - 2.1.8 Flaring cup wheel, Type 11
12 - 2.1.9 Dish wheel, Type12
12 - 2.1.10 Saucer wheel, Type 13
13 - 2.1.11 Cone and plug wheels, Types 16, 17, 18, 18R and 19.
14 - 2.1.12 Relieved and or recessed wheels, Types 20, 21, 22, 23, 24, 25 and 26.
15 - 2.1.13 Depressed centre wheels, Types 27 and 28
15 - 2.1.14 Cutting off wheels.
15 - 2.1.15 Coping wheels.
15 - 2.1.16 Tuck pointing wheels.
15 - 2.1.17 Notching wheels.
15 - 2.1.18 Mounted wheels.
16 - 2.1.19 Threaded hole wheels
16 - 2.2 GENERAL OPERATING SPEEDS.
16 - 2.2.1 Standard speeds.
18 - 2.2.2 Test speeds.
18 - 2.3 SPECIAL OPERATING SPEEDS.
18 - 2.3.1 Requirements for special speeds.
18 - 2.3.2 Conditions governing special speeds.
18 - 2.3.3 Machine builder's responsibility.
18 - 2.3.4 Wheel manufacturer's responsibility.
19 - SECTION 3. MATERIALS
19 - 3.1 GUARDS.
19 - 3.3 SPINDLES.
19 - 3.4 WORK RESTS.
19 - 3.2 FLANGES.
19 - 3.5 TOXICITY OF ABRASIVE WHEELS.
20 - SECTION 4. DESIGN AND CONSTRUCTION
20 - 4.1 DESIGN.
20 - 4.1.1 Machine design.
20 - 4.1.2 Spindle.
20 - 4.1.3 Flanges.
20 - 4.1.4 Power.
20 - 4.1.5 Guards.
20 - 4.1.6 Exhaust provision.
20 - 4.1.7 Reducing bushing.
20 - 4.2 CONSTRUCTION.
20 - 4.2.1 Work rests.
21 - 4.2.3 Threaded hole wheels.
24 - 4.2.4 Mounting of abrasive discs (inserted nut and inserted washer types).
24 - 4.2.5 Mounting of plate mounted type wheels.
25 - SECTION 5. SPECIFIC REQUIREMENTS FOR CONSTRUCTION OF GUARDS
25 - 5.1 GENERAL REQUIREMENT.
25 - 5.2 CUP WHEELS.
25 - 5.3 GUARD EXPOSURE ANGLES.
25 - 5.3.1 General.
25 - 5.3.2 Bench and floor stands.
25 - 5.3.3 Cylindrical grinders.
27 - 5.3.4 Surface grinders and cutting off machines.
27 - 5.3.5 Swing frame grinders.
27 - 5.3.6 Semi-automatic snagging machines.
27 - 5.3.7 Top grinding.
28 - 5.3.8 Portable grinders.
28 - 5.4 EXPOSURE ADJUSTMENT.
28 - 5.5 ENCLOSURE REQUIREMENTS.
28 - 5.5.1 Guard.
28 - 5.5.2 Additional enclosure.
28 - 5.6 MATERIALS AND DIMENSIONS.
28 - 5.6.1 General.
30 - 5.6.2 Cutting off wheels larger than 400mm diameter
30 - 5.7 MATERIAL SPECIFICATIONS.
30 - 5.8 GUARDS FOR FIXED GRINDING MACHINES.
31 - 5.9 GUARDS FOR PORTABLE GRINDING MACHINES.
31 - 5.9.1 General.
31 - 5.9.2 Drawn steel guards.
31 - 5.9.3 Revolving cups.
32 - SECTION 6. SPECIFIC REQUIREMENTS FOR CONSTRUCTION OF FLANGES
32 - 6.1 GENERAL REQUIREMENTS.
32 - 6.2 FINISH AND BALANCE.
32 - 6.3 UNIFORMITY OF DIAMETER.
32 - 6.4 RECESS AND UNDERCUT.
32 - 6.5 CONTACT.
33 - 6.6 FITTING OF DRIVING FLANGE.
33 - 6.7 DIMENSIONS.
33 - 6.7.1 Straight flanges, relieved and unrelieved.
33 - 6.7.2 Straight adaptor flanges for heavy duty grinding
33 - 6.7.3 Sleeve flanges.
33 - 6.8 TYPE 27 AND TYPE 28 WHEELS.
33 - 6.8.1 Wheels less than 180 mm diameter.
33 - 6.8.2 Wheels equal to or greater than 180 mm diameter
37 - SECTION 7. MOUNTED WHEELS
37 - 7.1 MAXIMUM SAFE OPERATING SPEEDS.
37 - 7.2 SPECIAL MAXIMUM OPERATING SPEED.
49 - SECTION 8. HANDLING AND STORAGE
49 - 8.1 HANDLING.
49 - 8.2 STORAGE.
51 - SECTION 9. MARKING OF ABRASIVE WHEELS
51 - 9.1 MARKING.
51 - 9.1.1 General.
51 - 9.1.2 General marking.
51 - 9.1.3 Additional marking.
51 - 9.2 METHOD OF MARKING.
52 - APPENDIX A - SPEED CONVERSION TABLE