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Mechanical Drawing Symbols

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 PRO vector 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.
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
Welding joint symbols, surfacing, stud, square groove, spot, projection, weld, slot, plug, weld, scarf, bronzed joint, resistance seam weld, melt through weld, insert, consumable insert, flare bevel groove, flared-bevel groove, flare V groove, flared-V groove, flange edge, weld, flanged edge groove, flange corner, flanged corner groove, fillet, weld, field weld, contour, flush, weld, contour, convex, weld, contour, concave, weld, contour, angled, flush, weld, contour, angled, convex, weld, contour, angled, concave, weld, bevel groove, backing, spacer, back, backing, arrow, bend, arrow, V-groove, U-groove, J-groove,
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
Additional arrow, arrow,
Text block
Text block,
Fillet
Fillet, fillet, weld,
Slot / plug
Slot / plug, slot, plug, weld,
Stud
Stud, stud,
Resistance seam
Resistance seam, resistance seam weld,
Backing
Backing, back, backing,
Surfacing
Surfacing, surfacing,
Flange corner
Flange corner, flange corner, flanged corner groove,
Flange edge
Flange edge, flange edge, weld, flanged edge groove,
Square groove
Square groove, square groove,
V-groove
V-groove, V-groove,
Bevel groove
Bevel groove, bevel groove,
U-groove
U-groove, U-groove,
J-groove
J-groove, J-groove,
Flare V groove
Flare V groove, flare V groove, flared-V groove,
Flare bevel groove
Flare bevel groove, flare bevel groove, flared-bevel groove,
Scarf
Scarf, scarf, bronzed joint,
Melt through weld
Melt through weld, melt through weld,
Field weld
Field weld, field weld,
Backing / spacer
Backing / spacer, backing, spacer,
Insert
Insert, insert, consumable insert,
Arrow with bend
Arrow with bend, arrow, bend,
Arrow with bend, tail
Arrow with bend, tail, arrow, bend,
Arrow with bend, circle
Arrow with bend, circle, arrow, bend,
Arrow with bend, circle, tail
Arrow with bend, circle, tail, arrow, bend,
Arrow
Arrow, arrow,
Arrow, tail
Arrow, tail, arrow,
Arrow, circle
Arrow, circle, arrow,
Arrow, circle, tail
Arrow, circle, tail, arrow,
Spot
Spot, spot, projection, weld,
Projection weld
Projection weld, spot, projection, weld,
Contour, concave
Contour, concave, contour, concave, weld,
Contour, convex
Contour, convex, contour, convex, weld,
Contour, flush
Contour, flush, contour, flush, weld,
Contour angled, concave
Contour angled, concave, contour, angled, concave, weld,
Contour angled, convex
Contour angled, convex, contour, angled, convex, weld,
Contour angled, flush
Contour angled, flush, contour, angled, flush, weld,
Square butt weld
Square butt weld, square butt weld,
Closed square butt weld
Closed square butt weld, closed square butt weld,
Single-bevel butt weld
Single-bevel butt weld, single bevel butt weld,
Double-bevel butt weld
Double-bevel butt weld, double bevel butt weld,
Single-V butt weld
Single-V butt weld, single-V butt weld,
Double-V butt weld
Double-V butt weld, double-V butt weld,
Single-J butt weld
Single-J butt weld, single-J butt weld,
Double-J butt weld
Double-J butt weld, double-J butt weld,
Single-U butt weld
Single-U butt weld, single-U butt weld,
Double-U butt weld
Double-U butt weld, double-U butt weld,
Flange butt weld
Flange butt weld, flange butt weld,
Tee butt weld
Tee butt weld, tee butt weld,
Flare butt weld
Flare butt weld, flare butt weld,
Square butt joint
Square butt joint, square butt joint,
Single V preparation joint
Single V preparation joint, single V preparation joint,
Lap joint
Lap joint, lap joint,
T-joint
T-joint, T-joint,
Butt weld
Butt weld, butt weld,
Butt weld, single-V
Butt weld, single-V, butt weld,
Bilateral lap weld
Bilateral lap weld, bilateral lap weld,
Tee weld
Tee weld, tee weld,
Angular weld
Angular weld, angular weld,
Mechanical weld
Mechanical weld, mechanical weld,
"Directional control valves route the fluid to the desired actuator. They usually consist of a spool inside a cast iron or steel housing. The spool slides to different positions in the housing, and intersecting grooves and channels route the fluid based on the spool's position. The spool has a central (neutral) position maintained with springs; in this position the supply fluid is blocked, or returned to tank. Sliding the spool to one side routes the hydraulic fluid to an actuator and provides a return path from the actuator to tank. When the spool is moved to the opposite direction the supply and return paths are switched. When the spool is allowed to return to neutral (center) position the actuator fluid paths are blocked, locking it in position. Directional control valves are usually designed to be stackable, with one valve for each hydraulic cylinder, and one fluid input supplying all the valves in the stack. Tolerances are very tight in order to handle the high pressure and avoid leaking, spools typically have a clearance with the housing of less than a thousandth of an inch (25 µm). The valve block will be mounted to the machine's frame with a three point pattern to avoid distorting the valve block and jamming the valve's sensitive components. The spool position may be actuated by mechanical levers, hydraulic pilot pressure, or solenoids which push the spool left or right. A seal allows part of the spool to protrude outside the housing, where it is accessible to the actuator. The main valve block is usually a stack of off the shelf directional control valves chosen by flow capacity and performance. Some valves are designed to be proportional (flow rate proportional to valve position), while others may be simply on-off. The control valve is one of the most expensive and sensitive parts of a hydraulic circuit." [Hydraulic machinery. Wikipedia]
The Windows template "Hydraulic 4-ported 3-position valve" for the ConceptDraw PRO diagramming and vector drawing software is included in the Mechanical Engineering solution from the Engineering area of ConceptDraw Solution Park.
www.conceptdraw.com/ solution-park/ engineering-mechanical
Hydraulic directional control valve
Hydraulic directional control valve,  valve, three-position, pneumatic valve symbols, hydraulic valve vector stencils, four-port, fluid power symbols
This example engineering drawing showing the hydraulic directional control valve usage with floating motor and pressure compensated pump is redesigned using the ConceptDraw PRO diagramming and vector drawing software from the Wikimedia Commons file: DCV 17.jpg.
[commons.wikimedia.org/ wiki/ File:DCV_ 17.jpg]
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
[creativecommons.org/ licenses/ by-sa/ 3.0/ deed.en]
"Directional control valves are one of the most fundamental parts in hydraulic machinery as well and pneumatic machinery. They allow fluid flow into different paths from one or more sources. They usually consist of a spool inside a cylinder which is mechanically or electrically controlled. The movement of the spool restricts or permits the flow, thus it controls the fluid flow. ...
The spool (sliding type) consists of lands and grooves.The lands block oil flow through the valve body. The grooves allow oil or gas to flow around the spool and through the valve body. There are two fundamental positions of directional control valve namely normal position where valve returns on removal of actuating force and other is working position which is position of a valve when actuating force is applied. There is another class of valves with 3 or more position that can be spring centered with 2 working position and a normal position. ...
Directional control valves can be classified according to:
(1) number of ports;
(2) number of positions;
(3) actuating methods;
(4) type of spool." [Directional control valve. Wikipedia]
The fluid power equipment drawing example "Directional control valve" is included in the Mechanical Engineering solution from the Engineering area of ConceptDraw Solution Park.
Hydraulic equipment schematic
Hydraulic equipment schematic, spring, variable spring, non-variable spring, reservoir, pressure compensator, hydraulic pump, four-port, flow path, four-port, crossed, flow path, flow path, floating motor, filter, electric linear, solenoid, dot, line, junction, closed path, closed port, callout, box, flow path,