Marking Out, Measurement, Fitting & Assembly - The Hong Kong ...

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Marking Out, Measurement, Fitting & Assembly4.6 Angle PlateAn angle plate, as shown in Fig. 18, is used for supporting or setting up workvertically. Slots and holes are provided for mounting and fixing the workpiece. It ismade of cast iron and ground to a high degree of accuracy.Fig. 18 Angle PlateFig. 19 Vee Block4.7 Vee BlockVee blocks, as shown in Fig. 19, usually in a couple are made of cast iron or steelin case-hardening. They are generally used to hold circular workpiece for markingout or machining.Page 10IC Professional Training
Marking Out, Measurement, Fitting & Assembly5. Hand Tools for Workshop5.1 Bench ViceA bench vice, as shown in Fig. 20, is the device for holding the workpiece wheremost hand processes to be carried out. The body of the vice is made of cast ironwhile the two clamping jaws are made of hardened tool steel. Some bench vicehas a swivel base, which can set the workpiece at an angle to the table. The viceheight should be correct ergonomically. In order to protect the workpiece frombeing damaged by the jaws, vice clamps are employed. Vice clamps, which aremade of copper, are fitted over the vice jaws when holding finished work.Care of VicesFig. 20 Bench Vicea. Do not direct impact the vice body by the hammer.b. Light hammering can be done on and only on the anvil of the vice.c. To avoid over clamping, the handle of the vice should be tightened by handonly5.2 FilesFiles are the most important hand tools used for the removal of materials. Theyare made of hardened high carbon steel with a soft 'tang', which is used for fixinga handle. Files are categorised as follows:-Fig. 21 FilePage 11IC Professional Training
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Page 5 and 6: 3. Measuring Tools in Workshop3.1 C
Page 10 and 11: 4. Marking Out Tools in WorkshopMar
Page 14 and 15: Length - measured from the shoulder
Page 23: 4. Safety, Precautions & Operation

Marking Out, Measurement, Fitting & Assembly - The Hong Kong ...

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