Week 10:- 2D Detailing Challenge
steps in 2D layout key sheet drafting.
a)key sheet layout of base unit drafting.
1.Base unit.
key sheet layout drafting of base unit mainly consists of following steps.
1.opening in separate part file.
the unit is opened in a separate part file and then the drafting is commenced by using drafting command.
2.background template.
the background template is used as it contains details about part no,type,part type and extra details.
the command we get from edit and sheet background we have to select standard sheet from the followings.
3.adding new sheets.
the sheet are added accoding to requirement like the orthographic or isometric sheets are generally added into it.
4.orthographic projection sheet .
select the sheet command and then the layout views according to first angle or third angle projection are projected on it.
5.isometric projection sheet.
the isometric projection sheet are generally used for projection of 3D views on it.
6.dimensions addition to the parts.
the various dimensions are added to the sheet according to manufacture requirements.
7.manufacturing requirements.
the manufacturing requirements like surface finish,tolerance grades,welding requirements are added to the drawing.
b)key sheet layout to the pin unit.
the product of key sheet are opened in separate window.
1.opening in separate window.
the file is opened in separate window.
2.Background template.
the background template mainly consists of various details like unit details.
3.adding sheets to the drawing.
the sheets are added like for orthographic or isometric drawings.
4.orthographic views.
the orthograohic views are projected in direction of front views,side views,top views.
5.isometric views.
the isometric views are generally projected in order to get 3D view of the object.
6.dimensional requirements or GD and T.
the various dimensional requirements and GD and t requirements are generally described.
7.manufacturing requirements.
the manufacturing requirements are generally mentioned over the drawing like surface finish,fetaure tolerances,hardness requirements are genrally denoted on it.
c)drafting of child parts of fixed pin unit.
the child parts of each unit is drafted separately according to customer requirements.
the child parts of fixed pin units are generally .
1pin units.
2.pin retainer.
3.blade.
4.riser.
the child parts are separately drafted according to the requirements.It consists of minute details of the part to be drafted separately in order to manufacture it.
1.pin units.
the pin units are drafted separately for requirements of manufacturing the product.
2.pin retainer.
the pin retainer is also drafted separately according to the requirements.
3.Blade
blade generally consists of the details of the part to be drafted separately.for manufacturing purpose