Mechanical Engineering

This solution extends ConceptDraw PRO v.9 mechanical drawing software (or later) with samples of mechanical drawing symbols, templates and libraries of design elements, for help when drafting mechanical engineering drawings, or parts, assembly, pneumatic,

Design elements - Dimensioning and tolerancing

The vector stencils library "Dimensioning and tolerancing" contains 45 symbols of geometric dimensions and mechanical tolerances, geometric symbols, callouts, and text boxes and inserts.
Use these geometric dimensioning and tolerancing (GD&T) shapes to create annotated mechanical drawings.
"Geometric dimensioning and tolerancing (GD&T) is a system for defining and communicating engineering tolerances. It uses a symbolic language on engineering drawings and computer-generated three-dimensional solid models that explicitly describes nominal geometry and its allowable variation. It tells the manufacturing staff and machines what degree of accuracy and precision is needed on each controlled feature of the part. GD&T is used to define the nominal (theoretically perfect) geometry of parts and assemblies, to define the allowable variation in form and possible size of individual features, and to define the allowable variation between features." [Geometric dimensioning and tolerancing. Wikipedia]
The shapes example "Design elements - Dimensioning and tolerancing" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Mechanical Engineering solution from the ConceptDraw Solution Park.

Dimensioning and tolerancing symbols

Used Solutions

Engineering >

Mechanical Engineering

Dimensioning and tolerancing - Vector stencils library

Datum (old)

Box callout

Datum symbol

Callout

All around callout

Text block

2 datum frame

Simple frame

Basic frame

1 datum frame

3 datum frame

Straightness

Flatness

Line profile

Circularity

Cylindricity

Surface profile

Position

Concentricity

Symmetry

Parallelism

Perpendicularity

Angularity

Material condition

Arc length

Diameter

Counterbore/ spotface

Countersink

Depth

Slope

Conical taper

Statistical tolerance

Datum (new)

Datum (new) 2

Target point

Target line

Target area (circle)

Target area (rectangle)

Total runout

Total runout 2

Circular runout

Circular runout 2

Surface finish

Surface finish, removal process

Surface finish, no process permitted

Used Solutions

Engineering >

Mechanical Engineering

Welding symbols

This engineering drawing present weld type symbols and fillet weld symbols.
The weld type symbol is typically placed above or below the center of the reference line, depending on which side of the joint it's on. The symbol is interpreted as a simplified cross-section of the weld.
"Fillet welding refers to the process of joining two pieces of metal together whether they be perpendicular or at an angle. These welds are commonly referred to as Tee joints which are two pieces of metal perpendicular to each other or Lap joints which are two pieces of metal that overlap and are welded at the edges. The weld is aesthetically triangular in shape and may have a concave, flat or convex surface depending on the welder’s technique. Welders use fillet welds when connecting flanges to pipes, welding cross sections of infrastructure, and when fastening metal by bolts isn't strong enough." [Fillet weld. Wikipedia]
The engineering drawing example Welding symbols is included in the Mechanical Engineering solution from Engineering area of ConceptDraw Solution Park.

Welding joint symbols