CMRD - poster v3

KnowledgeTransferPartnerships

KTP Associate: Anna Malahova (a.malahova@cranfield.ac.uk)

Web-based CAD/CAM for gear shaper cutters

New CAD/CAM system:

Benefits to the company:

Requires a lot of specialist knowledge and skillsNo specialised CAD software available in the marketDemanding flexibility in producing customised cutters

Flexibility in design

Better accuracy

Improved data transfer, storage & retrieval

Wastage reduction

Lead time reduction

Increase sales

Employs novel analytical model of gearingPlatform independent solutionEasy integration with the rest infrastructureUses open standards and softwareEasy to extend and maintainScalable and reliable

30.73

9.53 x 5.00

71

.00

58.0

0

12.0

0

144.0

020.00

2.00 R

3.00 R

31.27

17.00

4.0

0

30.0

0

16m

m S

I

74.4200 83.0300

74.4450 83.0679

74.4700 83.1058

74.4950 83.1437

74.5200 83.1815

74.5450 83.2194

74.5700 83.2573

74.6000

74.5000

74.6000

74.4261

83.3000

83.2000

83.2999

83.0509

102.7000 103.4500 104.2000 104.9500 105.7000

CUTTER OUTSIDE DIAMETER

GEAR ROOT DIAMETER GEAR CHAMFER DIAMETER

74.6000

84.6010

77.0915

83.3960

Gear involute

deviation graph

0.0000

0.1000

77.8352

83.3000

76.575376.7414

77.1636

77.8378

83.3007

84.6010

12.0

x4.2

key

slot,

tooth

3.5

18.00

22.00

3.00 R

27.00

80.0

0

54.0

0

60.0

0

96.7

3

31.7

50

30.0

1.5

0 R

15.0

5.0

10.00

CUTTER

Design strategies:Entirely Web-based software systemParametric design visualisationArtificial intelligence elements for computationsModular user interface

Project aim:To develop and implement a

CAD/CAM system for gear cutting tool design and manufacture exploiting state of the art hardware and software technologies

Gear cutting tool design & manufacture:

Networked CAD classification:Distributed CAD systemsWeb-based systems integrated with proprietary CAD toolsEntirely Web-based CAD systems

Web-based vs standalone systems:More managable and reliableBetter scalabilityPortabilityLess prone to crashing and creating technical problemsUsually cheaper to develop, deploy and maintainBetter data safety and availability from everywhereHigher level of abstraction from client platform

Utilised technologies:Python, TurboGears, PostgreSQL, JavaScript, MochiKit, ExtJS, SVG

Duration: 2007 - 09KTP Grant No. 6465

Academic Supervisor: Dr. A. Tiwari (a.tiwari@cranfield.ac.uk) Industrial Supervisor: R. Moorhouse (richard@dathan.co.uk)

CAD/CAM system diagram: