Abstract： ASME Y14.37:2012 pdf download.Composite Part Drawings. 7.3 Ply Orientation Symbol The ply orientation symbol is used to indicate the ply orientation. See para. 3.23. The requirements for ply orientation symbols are as follows: (a) Place the...

ASME Y14.37:2012 pdf download.Composite Part Drawings.

7.3 Ply Orientation Symbol

The ply orientation symbol is used to indicate the ply orientation. See para. 3.23. The requirements for ply orientation symbols

are as follows:

(a) Place the symbol in the tool side view.

(b) Show the zero axis and orientation of the symbol, either positive, negative, or both. See Fig. 7-1.

(c) Show the allowable orientation tolerance deviation of the plies from the ply orientation symbol directly or by reference. No tolerance is applied to the ply orientation symbol vectors.

(d) When more than one ply orientation symbol is required, identify each to differentiate the ply orientation symbols. See Fig.

7-2.

7.4 Ply Level

Each ply level encompasses all the plies and items laid in the same layer of the laminate prior to being covered either fully or

partially by another ply or item. The entire list of ply levels per part shall be in ascending order in the ply table. Ply level is frequently identified by terms such as layup step level or ply layer.

8 PLY STACKUP VIEWS

The requirements for ply stackup views are as follows:

(a) The view has no scale and shall be so noted.

(b) Each ply and item shown shall be identified mdiridu ally or in a callout listed in the order they are stacked in the laminate.

(c) Solid lines shall be used to depict each ply.

(d) The tool side(s) of the ply stackup shall be labeled.

(e) Other items shall be depicted within the ply stackup view through representation of the geometric shape.

See Fig. 3-1.

9 PLY TABLE

A ply table contains information about plies and items within a composite part. See Fig. 9-I. The requirements for a ply table are as follows.

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