|Defines the accuracy compared to a theoretical value.
|A property of metal products indicating metal sheet resistance to thinning during deformation process
|Antivibration elements, made of elastomer material. They are used to isolate the machines from the footholds and to avoid propagation of mechanical vibrations, These will be absorbed by the antivibration pads in the shortest span of time
|A type of press similar to a straight-side press with an enlarged bed and bell-shaped frame. The arch press can accommodate larger sheets of metal.
|ATTITUDE TO DEEP DRAWING
|Characteristic of a material to be plastically forged through deep drawing operations
|This version of geared presses allows a production with higher tonnage at reduced nominal speeds, thanks to an intermediate wheel-pinion gear system between transmission and eccentric shaft
|Hydraulic-driven ball guides system installed on the working table to better handle very large dies
|The main foundation and supporting structure upon which the operating parts of the machine are mounted and guided.
|Mechanical operation to forge an object applying different forces on it
|The shaping of sheet metal by straining the metal around a straight axis. A bending operation compresses the interior side of the bend and stretches the exterior side. Flanging, hemming, and seaming are all bending operations.
|Auxiliary function of the safety light curtains. It allows the introduction of objects in the protected field of the light curtains, without stopping the press operations
|Blanks are produced from the shearing or cutting of outside contours or shapes out of sheet or strip stock. For larger production runs, blanking is often done in multiple dies, and is combined with other operations such as piercing and forming in combination and progressive dies. A shearing operation that creates a hole in sheet metal by separating an interior section. The removed piece of metal is the desired section.
|Presses with Monitoring capability -a window that monitors if a certain force has been reached, but not exceeded within a pre-defined range of displacement
|Additional plate to reduce the distance table-ram
|A plate or block attached to the top of the press bed where the die is fastened. In some rare cases the die is fastened directly to the bed.
|BOTTOM DEAD CENTRE (BDC)
|Point at which the mobile part of the die is nearest to the working table of the mechanical eccentric press
|Device on rolls for rapid die tooling on the working table, especially in case of heavy dies
|Operation to set an instrument to improve its precision and accuracy
|Controller Area Network - CAN (also referred to as CANbus or CAN bus) is a network used in many every-day products consisting of multiple microcontrollers that need to communicate with each other
|The specified amount of force that a press is capable of exerting near the bottom of its stroke in order to carry out a stamping operation.
|CE marking is a safety standard that has been established by the European regulatory authorities
|Another term for the gap-frame press.
|Strip feeding device that uses pneumatically and hydraulically-activated clamps
|Nickel plated presses which are suitable for some clean room applications
|Metal sheet coil
|Strip curvature measured by the deflection of the strip axle in relation to the ideal line
|They contain the coil strip laterally to ensure proper unwinding
|Coils of metal sheet
|A plastic squeezing operation. Not suggested in the case of eccentric mechanical presses
|A squeezing operation usually performed in a closed die in which the metal is forced to flow and fills the shape and profile of the die. There is a definite change in metal thickness.
|Cold metal stamping, or at room temperature
|The shaping of metal at temperatures much lower than the metal's molten state, often at room temperature. Cold working adds certain properties to the metal, such as increased strength and improved surface finish.
|Structure to which a press head can be mounted. Two types- C-frame (maximum clearance for work piece) and H-frame (minimal deflection)
|A press fit type electrical connection that eliminates soldering. Schmidt has extensive experience in assembly & quality control of compliant pin assemblies.
|CONNECTING ROD ECCENTRIC SHAFT
|An eccentric device of a mechanical press. This device combined in its position with the eccentric shaft of the press allows the stroke change
|CONNECTING ROD OR CONNECTION
|The force that a Servo press can generate indefinitely
|PEDESTAL or CONSOLE
|Software that facilitates Process data management, HMI & PLC editing
|System to convey scrap material or the pieces produced after stamping
|The device in some mechanical presses that connects the ram to the flywheel.
|Operation in which two different contiguous parts, thanks to interference, are joined together
|An operation in which the open end of a can or shell is forced tight over or around a mating part. This type of work is limited largely to assembly operations.
|The upper portion of a press containing the drive mechanisms or cylinders that guide the reciprocating motion of the ram.
|The forming of an edge, having a circular cross section along a sheet, or around the end of a shell or tube. This operation is sometimes called false wiring.
|Time required to produce a punched and cut-to-size piece. It indicates the span of time from one stroke to the following one
|The main drive of a hydraulic press that uses fluid to force the motion of a piston encased within the device.
|Device that carries the strip to the straightener/feeder, thanks to spindle rotation
|Operation through which the strip is plastically forged and takes the form of a box or a cylinder
|Forming of deep recessed parts from sheet material by means of a plastic flow of the material worked in presses and dies.
|The amount of deviation from a straight line or plane when a force is applied. Effective presses reduce the amount of deflection during operation.
|After reaching target force, move predetermined distance
|It supplies the line with the pieces that have not been worked, taking them from a pile of strips, in order to allow their continuous feeding
|1. A tool used on a press for any operation or series of operations, such as forming, drawing, piercing and cutting. The upper member (or members) are attached to the slide (or slides) of the press, with the lower member clamped or bolted to the bed or bolster, shaped so that the material placed between them is cut or formed when the press makes a stroke. 2. The female part of a complete die assembly as described in (1). 3. A tool for cutting external threads. - Tool element used on a press for different operations like deformation, deep drawing and shearing
|Using a die coupling facilitates quick tool change and is ideal for tooling that needs to be guided extremely accurately by means of a die set.
|An attachment or press accessory which gives additional motion or pressure required in many compound press operations. The pressure medium can be rubber, springs, air or liquid (usually oil). Air (pneumatic) cushions are the most commonly used. Uses include blank holding, drawing, maintaining uniform pressure on a die part, knock-out, and stripping. Typically mounted in order on the press bed, they can sometimes be mounted on the top of a press slide flange.
|DIE CUSHION BLANK HOLDER
|Additional device of the mechanical press, installed under the working table with an extracting function (in case of pieces stuck on the bottom side of the die). It works also as die cushion for deep drawing applications
|The closed height of a die during the working portion of the press or completed operation in the die. Die Height is measured from the top of the bolster plate to the bottom of the slide.
|The collective assembly of upper and lower die shoes, guide pins and bushings, and punch and die holders.
|A Press type that produces constant force through the entire stroke, unlike a toggle press
|For sheet metal, a forming operation that transforms a flat disc of stock into a hollow cup with an enclosed bottom. Drawing operations can also create boxes and more intricate shapes as well.
|A type of redundancy. This can apply to electrical and pneumatic controls. Two channels (valves, relays, etc) must function properly in order for an action to take place.
|DYNAMIC BENDING COMPENSATION
|A patented feature by Schmidt that allows achieving a high degree of position accuracy under varying forces
|EC TYPE APPROVED
|Type-approval is a procedure by which the approval authority verifies that a vehicle or component type meets the relevant technical requirements.
|Essentially a disk arranged to rotate around a center, not the center of dish but parallel to it. An eccentric should crank with a crankpin of such size that it contains or surrounds the shaft. The eccentric with its strap or connection is used in the eccentric press and for driving auxiliary attachments, such as lift outs and various types of feeds.
|A drive that uses an offset section to power the reciprocating motion of the ram.
|Main shaft of a mechanical press used to convert the rotatory motion, produced by an electric motor, into linear reciprocating motion (for stamping operations - through ram or slide)
|It integrates the electronic component of the press, PLC and safety modules. Separated from the press.
|Main engine of the eccentric mechanical press. Used to activate the whole kinematic system
|ELECTRICAL CONTROL BOX
|It integrates the electronic parts, PLC and security parts of the press
|Electronic system that, thanks to an encoder, creates some output signals, simulating more mechanical cams
|A process for producing raised or sunken designs in sheet metal by means of a male and female die.
|Electronic device used as transducer for angle position and axles rotation speed
|Wheel applied on the strip surface (after the feeder) and moved by the movement of the strip itself. Used to measure feeding lenghts
|Force needed to remove the piece from the die
|Extracting unit made of a metallic bar, integrated in the ram of the eccentric mechanical press. Installed to pull out the piece which gets stuck on the die upper part
|A process in which pressure is applied to a slug of metal causing the metal to flow either up around the punch (toothpaste tubes) or down in the direction of pressure (cartridge cases - Hooker process).
|Press feeding system to move coil strip
|FEEDER WITH BUILT-IN STRAIGHTNER
|Before moving the strip to the mechanical eccentric press, this feeding device is able to straighten the strip, thanks to a multiple rolls system. The layout of this feeding line is meant to reduce the space compared with the usual layout with straightener apart. Suitable for stamping with average speeds and steps
|A bending operation that bends the edge of a part to add stiffness. Flanging most often creates a 90 degree bend in the metal.
|Difect given by metal shearing
|Wheel accumulating inertia (kinetic energy). The main device located in the crown of a mechanical press that is attached to the power source and regulates the reciprocating motion of the ram. It is able to prevent high or sudden speed variations, due to stamping operations
|This version allows the use of higher speed with higher productivity, having no intermediate reduction between the drive shaft and the eccentric shaft
|Total force generated by a press. Also see Pressure
|An option for Hydro Pneumatic presses that allows presetting of maximum pressure / force independent from the main operating pressure.
|The structure of a press that supports the ram above the base and guides the reciprocating motion of the ram.
|A closed frame (as opposed to a C-frame) that keeps deflection to a minimum
|A type of press with a C-shaped frame suspending the crown over the bed and an open portion in the front. The open front of the gap-frame press offers easy access to the die set.
|Guides or shoes that insure the proper sliding fit between two machine parts and which usually are adjustable for taking up excessive wear, e.g., press gibs that guide the press slide.
|Same as Gantry frame
|A type of press with a cylindrical projection designed to position sheet metal parts for secondary operations.
|Overheated metal stamping
|The shaping of metal at temperatures close to the metal's molten state. Metal that has been hot worked is often left with a rough, scaly exterior.
|HYDRAULIC / HYDROPNEUMATIC CLUTCH
|Hydraulic clutch that allows a high number of engages per minute and it's not subject to wear
|Hydraulic devices to allow easy die fixing on the eccentric mechanical press
|HYDRAULIC CONTROL UNIT
|It provides the oil under pressure to the hydraulic circuit
|Feature of the decoiler, the spindle is hydraulically opened
|Power derived from the motion and pressure of a fluid, such as water or oil.
|Press working thanks to a fluid pressure, usually hydraulic oil, to develop a force able to compress different materials, in order to compress and pack them
|A press that is driven by hydraulic power. Most hydraulic presses are driven by one or more cylinders that use fluid pressure.
|A pneumatic press with an integral hydraulic section used as a pressure intensifier that enables generation of great force with normal compressed shop air.
|A machine control process used to adjust and set dies and other tools by precisely controlling the working members of the press in short increments usually by rapidly engaging and disengaging the clutch or using electric or pneumatic push buttons.
|INNER COIL DIAMETER
|Inner diameter of the metal sheet coil
|Electronic device that, thanks to frequency variation, allows the speed regulation of an eccentric mechanical press
|A process in which the wall thickness of the shell is reduced without changing the O.D. of the shell (cartridge case work for example).
|International Standard Organization - engineered hardware designed to this standard is interchangeable, regardless of manufacturer
|kilo Newton = 1,000 Newton = 225 lbs
|Metric unit of volume - Normal Liter ( 1 L = 0.0353 ft³)
|Material obtained through a rolling process
|Slitting and forming a pocket shaped opening in sheet metal, without removing metal.
|A modified slide motion that produces either constant velocity or increased slow down through the working part of the press stroke.
|Load detectors. They are used to simulate the press work under load. An interface system with a PC is able to detect the curves of force consumption
|Decoiler device to allow easy loading of large coils
|Situated between decoiler and straightener and between straightener and feeder. Used to balance the various speeds of the feeding machines to the mechanical eccentric press
|A system which controls the different speeds among the components of a feeding line
|LOWER DIE SHOE
|The lower plate of a die set that contains the cavity into which the punch shears the sheet metal.
|With rolls or spray lubrication. It indicates a system which can make all stamping operations easier
|Feature of the decoiler, the spindle is manually opened by the operator through a manual system
|Actions taken to optimize the material, while reducing scrap material
|Device fixed on a rotation axle that excites specific limit switches. This creates some output signals used in the machine.
|Power derived from the use of solid tooling and machinery.
|A press that is driven by mechanical power. Most mechanical presses are driven by a flywheel, crank, and clutch.
|The plastic deformation of a metal in order to produce a useful shape. Sheet metal can be formed through operations that shear, stretch, bend, or compress the metal.
|Metallic material, available in coil or strips
|Wheel applied on the strip surface (after the feeder) and moved by the movement of the strip itself. Used to measure feeding lenghts
|This motor-driven device ensures that the material is fed to the straightener by the rotation of the spindle
|Motorized device to allow easier ram regulation
|MOULD (UK) MOLD (US)
|Reducing the diameter of a portion of the length of a cylindrical shell or tube.
|See Clean room
|Speed at which the press can express its nominal power
|Designates output signal from a sensor. This sensor is sinking type and provides 0 Volt or negative voltage. Used with sourcing control input
|OPC is open connectivity via open standards. They fill a need in automation for exchange of data like printer drivers did for Windows
|OPEN-BACK INCLINABLE PRESS
|A type of gap-frame press with a bed and frame that can be tilted backwards to encourage the removal of parts after they are separated from the strip.
|OUTER COIL DIAMETER
|Outer diameter of the metal sheet coil
|Process Data Acquisition, collects & evaluates process data
|The absolute, maximum force that a Servo press can generate for a very short amount of time.
|PEDESTAL FOR CONTROL BOARD
|Mobile control board (bimanual control)
|A general term for cutting (shearing or punching) openings, such as holes and slots in sheet material, plate or parts. Similar to blanking- the slug or piece produced by piercing is scrap, whereas the blank produced by blanking is the useful part. In both cases the burr is opposite.
|In progressive dies, the precision of coil position in relation with the die, can be managed by pilots. They enter into holes, properly pre-sheared along the progressive die
|A connecting rod to convey motion and pressure from a revolving crank of eccentric to a sliding or swinging member, such as a slide or lever. A press connecting rod.
|Pneumatic clutch combined with springs
|PNEUMATIC DIE CUSHION
|Pneumatic (air) attachment, consisting essentially of a cylinder piston, pressure plate and accessories generally used with a press for clamping, blank holding or ejecting.
|Designates output signal from a sensor. This sensor is sourcing type and provides 24 Volt or positive voltage. Used with sinking control input
|Japanese term which means 'mistake-proofing', often referred to as 'error-proofing', a means to easily identifies a flaw or error and prevent incorrect parts from being made or assembled. Typically, all sorts of sensors as part of the tooling or equipment are utilized to achieve this task.
|The distance over which a Hydro-Pneumatic Press can generate the rated force. The power stroke can occur anywhere within the total stroke of the press. Power stroke is not added to the total stroke of the press. A press model 62.100.6 has a total stroke of 100 mm and not 106 mm. 6 mm defines the power stroke capacity.
|A machine with a stationary base and an upper ram that moves along a vertical axis to shear, bend, or form sheet metal.
|For presses with inclination, it indicates the ground base on which the press frame is built
|The stationary portion or "table" of the press to which the bolster is attached.
|The friction mechanism used to stop or control the motion of a press, feed or other mechanism.
|Rated press capacity is the tonnage pressure the slide can safely exert at the bottom of the stroke. Mechanical press capacity is typically based on the bending capacity of the main shaft (crank, toggle, or eccentric shaft).
|A coupling used to connect or disconnect a driving machine-member, such as a shaft or wheel, to or from a driven machine-member, such as another wheel or shaft. The engaging or disengaging can be done by a hand operated controlling device operated manually or automatically.
|Force of the press (Ton)
|PRESS WITH INCLINATION
|Press equipped with inclination to release easily the pieces produced (release due to gravity)
|PRESS WITH TRANSFER
|In this version, the strip is carried through a transfer device that is able to move the strip step by step
|A force based on a certain area, typically pounds per 1 square inch, or PSI. Pressure is not an indication of force generated, unless surface area is known.
|Made of a metallic mobile arm and of a wheel which pushes the strip to ease its introduction and start a new session, while working in complete safety.
|It indicates the number of pieces produced in a time unit- it is inversely proportional to the cycle time
|PROGRAMMABLE SAFETY LIGHT CURTAINS
|Electronic safety devices to protect the working area of the press. The programmable functions are installed to improve the use of the press in case of productions in single stroke with manual loading and unloading. The cycle starts automatically after two or three accesses (you can select it from the control board). During the cycle, the possible new interruption of the light flow will block the press due to safety reasons.
|A series of two or more dies arranged in line for performing two or more operations on a part, one operation (single or compound) performed in each die, at each station. Work in the form of a strip is usually fed to progressive dies automatically by a roll feed.
|Element of the die that, pushed by the eccentric mechanical press, carries out the shearing operation
|PUNCH / STAMP
|The tool typically attached to the upper portion of the die set that shapes or penetrates the sheet metal.
|A shearing operation that creates an open hole in sheet metal by separating an interior section. The removed metal section is discarded scrap.
|The main upper portion of the press that slides up and down within the press frame. The upper die shoe is attached to the ram.
|Ram adjustment (by turning the screw between connecting rod and ram) which allows distance regulation table-ram to adapt the press to the die
|RAM DRIFT LOCK
|Prevents the ram of a pneumatic press to drift downward in the case of air pressure loss
|REAL TIME CLOSED LOOP FORCE CONTROL
|The Servo Press can accurately maintain the ram position based on force feedback instead of position feedback.
|In a C-frame press, it indicates the distance between the machine axle and the frame (rear side of the table)
|The second operation following deep-drawing operations, in which cups are deepened and reduced in cross section.
|Serving as a duplicate for preventing failure of an entire system or unintended actions. Can apply to pneumatic as well as electrical controls.
|This specification is independent from accuracy and indicates how well some criteria can be repeated.
|Mechanical linking element between the eccentric shaft and the ram
|Strip feeding device that uses two overlapping rolls, whose rotation activates the strip movement
|Used to convey, stroke after stroke, the different pieces to the die
|SAFETY LIGHT CURTAINS
|Electronic safety devices to protect the working area of the press
|Waste material produced after stamping
|Scrap removal system after stamping operations
|A bending operation that joins the interlocking edges of two separate metal sheets together by folding them over one another.
|Instrument to cut off strips, scrap material and pieces produced
|A force that attempts to cause the internal structure of a material to slide against itself.
|The ability of a material to resist forces that attempt to cause the internal structure of the material to slide against itself.
|Operation of plastic deformation performed on metal sheet
|The shut height of an upright press is the distance from the top of the bed to the bottom of the slide with stroke down and adjustment up. The shut height must always be defined either from the top of the bed or from the top of the bolster. The shut height of a horizontal or inverted press, or of a press with adjustable bed, can be defined in a similar manner. Generally the shut height is equal to the maximum die-height of the die that can be accommodated, taking the bolster into consideration.
|Relates to electrical & pneumatic controls. Single channel is non-redundant. Single channel does not require two valves or two electrical ciruits to operate simultaneously in order for an action to take place.
|SINGLE IMPRESSION DIE
|Die with single impression to produce the requested piece
|SLIDE / RAM
|The most common name for the main reciprocating member of a press, guided in the press frame and to which the punch or upper die is fastened. It is also referred to as the ram. The inner slide of a double action press is called the plunger- the outer slide of a double action press is called the blank holder slide, and the slide of a hydraulic press is often called the platen.
|The distance a mechanical press slide can be moved from its maximum shut height to reduce the die space height. The adjustment can be performed by hand or with a power mechanism.
|Used as a criteria for the point when a servo press ram is to stop pressing and return. Slope refers to ratio between traveled distance vs. increase of force.
|It completely closes the stamping line, reducing the noise level of the system.
|Statistical Process Control
|An operation in which two or more parts are assembled permanently by upsetting a small portion of metal over the mating part, causing the compression on the assembled parts.
|The process of forming sheet metal at room temperature with the use of dies and punches.
|STEEL RULE DIE
|A cutting tool that uses a thin steel blade, used to cut thin material. The blade cuts against a urethane or steel pad
|A type of press with supporting columns in each corner of the frame suspending the crown over the bed. The straight-side press offers improved rigidity and reduced deflection.
|The distance marked by the farthest ends of reciprocating vertical movement of the press ram.
|STROKE COMPLETION SENSOR
|Option for Direct Acting Pneumatic presses- ensures a stroke has been reached within an accuracy of 0.004"
|STROKE RETURN LOCK
|Option for Manual presses- ensures the target stroke has been reached before releasing ram for return
|A type of monitoring criteria for Schmidt Presses with Monitoring capability
|Power supply voltage that needs to be supplied to the equipment
|Forming a metal by the rapid striking of a large number of successive blows. In the case of aircraft cable fittings, the fitting is rotated while the press blows are being struck.
|Technical support in remote, performed by qualified staff with operations on the system
|This device can be integrated to the die to carry out tappings on simple holes or punched holes, during stamping operations
|The open space in a gap frame press back of the slide centerline. The depth of throat (gap) is the distance from the slide centerline back to the frame metal of the upright section.
|Four long rods, with threads and nuts on both ends, which hold the frame members of a straight side press together. These rods are stretched to place the frame members under compressive load.
|Nuts located on the plate and on the ram surface to fix the die
|A linkage that provides a press with a mechanical advantage to achieve great output force over a short distance with little input force, thus allowing operation of a pneumatic toggle press with small cylinders.
|It indicates the interval in which a certain operation is performed, compared to the theorical design value
|Used as monitoring criteria for a press with process monitoring capability. A window is defined by a lower & upper force limit over a pre-defined amount of displacement. The force curve must stay within the force limits of this defined displacement in order to pass the criteria.
|Die or part of it
|TOP DEAD CENTRE
|Point at which the mobile part of the die is farthest from the working table of the eccentric mechanical press
|Device to carry the piece under the die
|A secondary operation on drawn or formed parts, to remove excess metal on the flange or on axial length.
|A type of press with an open frame and a turret containing multiple punches. Turret presses are mostly used to perform a variety of shearing operations, and they are typically numerically controlled.
|TÜV is a German based, independent approval and testing organization with a wide range of services for the automotive industry.
|UPPER DIE SHOE
|The upper plate of a die set that secures the punch holder.
|Area under the force/distance curve, i.e. the amount of work exerted during one press cycle.
|Distance from the BDC (bottom dead centre). At this point the press works at its nominal speed
|Feeder with lateral movement to allow productions with multiple impressions to reduce scrap materials