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

Used Solutions

Engineering >

Mechanical Engineering

Design elements - Welding

The vector stencils library "Welding" contains 38 welding joint symbols to identify fillets, contours, resistance seams, grooves, surfacing, and backing.
Use it to indicate welding operations on working drawings.
"Welding is a fabrication or sculptural process that joins materials, usually metals or thermoplastics, by causing coalescence. This is often done by melting the workpieces and adding a filler material to form a pool of molten material (the weld pool) that cools to become a strong joint, with pressure sometimes used in conjunction with heat, or by itself, to produce the weld. This is in contrast with soldering and brazing, which involve melting a lower-melting-point material between the workpieces to form a bond between them, without melting the workpieces.
Many different energy sources can be used for welding, including a gas flame, an electric arc, a laser, an electron beam, friction, and ultrasound.
Welds can be geometrically prepared in many different ways. The five basic types of weld joints are the butt joint, lap joint, corner joint, edge joint, and T-joint (a variant of this last is the cruciform joint). Other variations exist as well - for example, double-V preparation joints are characterized by the two pieces of material each tapering to a single center point at one-half their height. Single-U and double-U preparation joints are also fairly common - instead of having straight edges like the single-V and double-V preparation joints, they are curved, forming the shape of a U. Lap joints are also commonly more than two pieces thick - depending on the process used and the thickness of the material, many pieces can be welded together in a lap joint geometry." [Welding. Wikipedia]
The shapes example "Design elements - Welding" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Mechanical Engineering solution from the Engineering area of ConceptDraw Solution Park.

Welding joint symbols

Used Solutions

Engineering >

Mechanical Engineering

Valves and fittings - Vector stencils library

The vector stencils library "Valves and fittings" contains 104 symbols of valve components.
Use these icons for drawing industrial piping systems; process, vacuum, and fluids piping; hydraulics piping; air and gas piping; materials distribution; and liquid transfer systems in the ConceptDraw PRO software extended with the Chemical and Process Engineering solution from the Chemical and Process Engineering area of ConceptDraw Solution Park.
www.conceptdraw.com/ solution-park/ engineering-chemical-process

Electrically bonded

Bursting disc

Flame arrester

Strainer

Separator

Exhaust silencer

Bell mouth

Exhaust head

Hydrant

Drain silencer

Liquid seal open/closed

Y strainer

Gate valve

Globe valve

Globe valve 2

Globe valve 3

Screw-down valve

Lock-shield valve

Reel valve

Check valve

Check valve 2

Check valve 3

Screw-down check valve

Stop check valve

Diaphragm valve

Diaphragm valve 2

Diaphragm valve 3

Powered valve

Powered valve 2

Powered valve 3

Needle valve

Needle valve 2

Needle valve 3

Relief valve

Relief valve 2

Relief valve 3

Angle valve

Angle valve 2

Angle valve 3

Angle valve 4

Float operated valve

Float operated valve 2

Flanged valve

Butterfly valve

Butterfly valve 2

Wedge gate valve

Parallel slide valve

Ball valve

Ball valve 2

Ball valve 3

Relief angle valve vacuum

Relief angle valve pressure

Reducing valve

Reducing valve 2

Plug valve 3 way

Plug valve L point

Plug valve 2

Plug valve

Plug valve straight through

Plug valve T point

3-way plug valve

3-way plug valve 2

3-way plug valve 3

Mixing valve

Valve Manifold

Characterized port valve

Reducer

Reducer 2

General joint

Butt weld

Butt weld 2

Butt weld 3

Butt weld 4

Flanged/ bolted

Soldered / solvent

Soldered / solvent 2

Screwed joint

Screwed joint 2

Screwed joint 3

Socket and spigot

Socket and spigot 2

Socket and spigot 3

Sleeve

Sleeve 2

Screwed sleeve

Screwed sleeve 2

Socket weld

Socket weld 2

Swivel joint

Swivel joint 2

Swivel joint 3

End cap

End cap butt welded

End cap screwed

End cap socket and spigot

End cap fillet welded

End cap screwed and plugged

End cap quick release

End cap flanged and bolted

End cap flanged and bolted 2

Electrically insulated

Tundish

Syphon drain

Open vent

Used Solutions

Engineering >

Chemical and Process Engineering

Welding - Vector stencils library

The vector stencils library "Welding" contains 38 welding joint symbols to identify fillets, contours, resistance seams, grooves, surfacing, and backing.
Use it to indicate welding operations on working drawings in the ConceptDraw PRO diagramming and vector drawing software extended with the Mechanical Engineering solution from the Engineering area of ConceptDraw Solution Park.
www.conceptdraw.com/ solution-park/ engineering-mechanical

Additional arrow

Text block

Fillet

Slot / plug

Stud

Resistance seam

Backing

Surfacing

Flange corner

Flange edge

Square groove

V-groove

Bevel groove

U-groove

J-groove

Flare V groove

Flare bevel groove

Scarf

Melt through weld

Field weld

Backing / spacer

Insert

Arrow with bend

Arrow with bend, tail

Arrow with bend, circle

Arrow with bend, circle, tail

Arrow

Arrow, tail

Arrow, circle

Arrow, circle, tail

Spot

Projection weld

Contour, concave

Contour, convex

Contour, flush

Contour angled, concave

Contour angled, convex

Contour angled, flush

Square butt weld

Closed square butt weld

Single-bevel butt weld

Double-bevel butt weld

Single-V butt weld

Double-V butt weld

Single-J butt weld

Double-J butt weld

Single-U butt weld

Double-U butt weld

Flange butt weld

Tee butt weld

Flare butt weld

Square butt joint

Single V preparation joint

Lap joint

T-joint

Butt weld

Butt weld, single-V

Bilateral lap weld

Tee weld

Angular weld

Mechanical weld

Used Solutions

Engineering >

Mechanical Engineering

Mechanical Drawing Symbols F.A.Q.

How to Use Mechanical Engineering Design Software

Mechanical Drawings are the special type of technical diagrams that visualize the structure of complex systems and illustrate the information about ventilation, heating, air conditioning, i.e. HVAC systems. These drawings are created on the base of floor plans and reflected ceiling plans, and then become an obligatory part of construction project which is needed directly for construction a building and for receiving a permit on it. Mechanical drawings and diagrams help effectively represent construction, technical and engineering solutions, and also schematics of different mechanical equipment. ConceptDraw DIAGRAM ector drawing software enhanced with Mechanical Engineering solution from Engineering area of ConceptDraw Solution Park provides wide set of effective drawing tools, predesigned mechanical drawing symbols, templates, samples and examples. Use of standardized and recognized mechanical vector symbols helps you design understandable mechanical drawings, diagrams and mechanical engineering schematics.

Bearings - Vector stencils library

The vector stencils library "Bearings" contains 59 symbols of ball bearings, roller bearings, shafts, springs, gears, hooks, spindles, and keys.
Use it to design engineering drawings of machine tools and mechanical devices in the ConceptDraw PRO diagramming and vector drawing software extended with the Mechanical Engineering solution from the Engineering area of ConceptDraw Solution Park.
www.conceptdraw.com/ solution-park/ engineering-mechanical

Through hole