Workshop Practice Series 15 Workholding in the lathe

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Workshop Practice Series 15 Workholding in the lathe

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Contents

REFACE
Between centres
Principles – conditions for accuracy – types of centrescentring
the work – driving – non-circular workpieces crankshafts
– clamps and throwpieces – taper turning –
mandrels.
Faceplate work
Principles and clamping – dogs – adhesive fixing –
Chuckwork – General
Chucking principles – distortion – number of jaws –
chuck mounting. 41
The Universal or Independent Chuck
Gripping forces – setting-up – irregu lar shapes – overhang –
unorthodox methods-compound chucking. 47
The Self-centring Chuck
History – types – strength of the scroll – accuracy –
the ‘Griptru’ – errors and wear – eccentric work-
4- and 6-jaw types. 57
Unusual Chucks
Bell and cup chucks – master-and-sl ave chuck – wood-block
chucks- the shellac chuck.