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AS 1788.1-1987

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AS 1788.1-1987

Abrasive wheels Design, construction, and safeguarding

Standards Australia

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Table of Contents

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

Abstract

Specifies requirements for the design and construction of abrasive wheels and the manufacture and installation of abrasive wheels and ancillary equipment. Particular requirements are given for the construction of guards for all equipment fitted with abrasive wheels and for the construction of flanges for use with abrasive wheels. Includes sections covering standard (normal) maximum operating speeds for all types of wheels. The Standard is extensively illustrated.

Scope

This standard sets out requirements for the design and construction of abrasive wheels (excluding natural sandstones) and includes requirements for safety guards, flanges, chucks, and revolving cups. Requirements for the proper storage, handling, and identification of abrasive wheels are also included. Application and operating requirements are included in AS 1788.2.

General Product Information

Document Type Standard
Status Current
Publisher Standards Australia
Committee SF-012
Supersedes
  • AS 1788-1975
  • DR 85292