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text engravings into the unfolding. Does the text for ex-ample contain a machining pa ern you can pass the

so prepared unfolding to TruTops Punch. With that the machining pa ern is already placed

and aligned.

Unfold parametersSPI uses unfold parameters to operate the technology-driven manufacturing,

e.g. lasing and punching. Af-ter you have a ached

material data to your sheet metal parts the corresponding parameters will be chosen and saved in

a component fi le. But fi rst you have to ad- just these parameters according to your requirements. Once defi -ned and saved, such unfolding parameter confi gu-ra on can be chosen quickly in a drop-down list of the Inventor mul task bar and can be assigned to the current part. Apart from the general defi ni ons you have access to the following unfold parameters: Free form surfaces, Drawing, Precision, Post proces-sing, Relieves, Bend Mark, NC, DXF, GEO, WiCAM, Bend Table, defi ni on of a follow-up ac on. For corner relieves the so ware off ers a wide range of diff erent types (e.g. circle, square, oblong, rhomb, laser fl ex). Exis ng corner relieves can be overwri en also for fi lleted bending zones. Even the unfolding of so called ball corners is possible. Unwanted cu ngs, that had to be remodeled occasionally, are a thing of the past.

SPI SheetMetal Inventor is 100% integrated with the current Autodesk Inventor CAD so ware and it allows accurate sheet metal unfoldings even of complex parts and assemblies. SPI has been developing applications for the sheet metal industry for more than 30 years. Our sheet metal solutions are proven and used by numerous satisfied customers worldwide.

SPI SheetMetal Inventor

SPI SheetMetal Inventor starts where other so-lutions have reached their limits and enhan-ces the sheet metal functionality of the corresponding basic systems by impor-tant and proven functions, especially regarding the process chain and the digital transfer to the respective NC programming system.

Design toolsSPI provides you with a catalogue of punching and forming tools. The selec on and use is carried out by dialogues in which you defi ne the parameters of the tools. In this way you always use the tools that are locally available and that can be used for the cho-sen material‘s thicknesses. The import of pun-ching and forming tools from TruTops Punch is pos-sible. Using the SPI material editor you can also read material and bending tool data from TruTops Bend. Bending tools can be defi ned in groups with upper and lower dies. You can instead use your own customer-specifi c tools for the design and forward the respec ve manufacturing informa on within the process chain.

Manufacturing informa on a ributesFor holes and imprints, it is required every now and then that a text is displayed in the unfolding, instead of a contour, which determines the tool for the subsequent manufacturing process. With SPI you can pinpoint text replacements at a 3D model with manufacturing informa on a ributes for special contours of holes or imprints. Furthermore you use the a ribute to transfer

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Enhanced Produc vity in Sheet Metal Design

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Unfolding ready for manufacturingSPI calculates the unfolding based on TRUMPF using the resul ng produc on radius. The designed bend radius stays unconsidered. Alterna vely the shortening value is either calculated on the ba-sis of formulas, K-factor or with empirically determined reduc on tables. The corner and the bend zone relieves as well as the un-folded length are precisely analyzed and reliably considered in the unfolding. It is possible to display bend lines and border lines of bend zones .

Free formed, conical and cylindrical surfaces with large radii can with a sequence of production-oriented bend lines either be prepared for successive bending or be prepared for rolling. Bend marks can automatically be added to bend lines so that it is easier for workers to find the position of a line on the plate.

The assembly context provides a command with which all the sheet metal parts of an assembly can be unfolded simulta-neously. Material data and unfolding parameters can be al-located either to the individual parts or to all parts of the current assembly. This way you make sure that no part will be forgotten.

Handling of imported partsThanks to the adjustable tolerances imported parts will also be unfolded suitably for produc on. This even works with sharp-cornered solids without Inventor sheet metal func onality. Here all technology data which are stored in the SPI database (e.g. material, sheet metal thickness, bend-, punch-and forming tools) are considered. SPI always calculates the correct unfolding that results from the applied bending tool combina on and the assig-ned manufacturing technology.

Free form surfacesThe unfolding of freeform surfaces and transi ons will not be a problem any longer. With SPI you can unfold curved surfaces like conical, ellip cal and other transi onal surfaces. From me to me free formed surfaces - for example screw conveyors - are

used whose bending in one direc on is decisive and in the other direc on negligible. Thanks to op mized and produc on-oriented posi oning of bend lines and tools SPI provides you an unfolding which can be transferred directly to the produc on department.

SPI SheetMetal Inventor

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Sharp cornered designSPI off ers commands especially for the design of sharp cornered fl anges. The Split Face command allows to virtually cut planar sheet metal surfaces and to a ach corner split a ributes. SPI cal-culates the precise unfolding in just seconds. Any miter cuts that are necessary for the produc on are processed op onally. This is very helpful when you design so called collar faces which means circular, sharp-edged profi les.

Library of componentsWith SPI SheetMetal Inventor you receive a professional library with pre-defi ned components that can be used immediately. Several combina ons of round, angled and fi lleted transi ons can be picked up from clearly arranged dialogue boxes and a erwards be created as bending parts. The SPI component library supports you in making designs suitable for produc on and to fi le them as samples in the database. In that way you defi ne and guaranty your construc on guidelines.

Associa ve viewsThe corresponding unfolding will be updated automa cally a er any change at the 3D part. The dimensions will be adjusted ac-cordingly.

InterfacesWith the SPI TruTops Interface it is possible to import the ma-terial- and bending process informa on from TruTops Bend into the SPI material management in order to use it when designing. In that way the produc on radii and bending factors resul ng from the manufacturing process are already taken into account. A GEO fi le containing the bending, punching and manufacturing informa on is op onally generated and can directly be used in the modules of the TruTops Suite (TruTops CAD, Nest, Laser, Punch, Bend). The interface also off ers a selec on of punch- and forming tools from TruTops Punch. TruTops Punch reads the ma-nufacturing informa on transferred from SPI and allocates them to the corresponding machining pa ern. The complete bending informa on of a component (opening angle, radius, bending tool combina on, bending technology) will be transferred to TruTops Bend within the GEO fi le. The unfolding can be used in TruTops Bend immediately for the NC-code genera on.

By using the SPI WiCAM Interface you can directly export the un-folding geometry in a XML-fi le which is interpreted by WiCAM's so ware PN4000. The XML-fi le contains the following: unfolding geometry, informa on about bending and bending lines (ben-ding angle, bending radius, shortening and posi on), engravings, tool informa on (iden fi ca on number, posi on, orienta on and side), furthermore units – especially for lengths and angles and user-defi ned a ributes.

SPI supports every Inventor 3D-import format, e.g.

STEP AP203/214: *.step; *.stpIGES: *.igs; *.igesCATIA V4: *.CATPart, *.CATProduct, *.modelCATIA V5: *.CATPart, *.CATProduct

Test the bestEnjoy time savings up to 90% when you process imported parts and unfold com-ponents with freeform surfaces. Ask for a presentation at your place and let us con-vince you of the productivity benefits.Call + 49 4102 70 60.

SPI SheetMetal Inventor

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SPI SheetMetal Inventor Features & Benefi ts• Tool library with punching and forming tools• Tool import from TruTops Punch• Access to the TruTops Bend database• Free editable and expandable component library with

standard parts, connec ons, transi ons and fl anges• Material management with free editable data content• Support of metric and imperial (inch) dimensions• Modifi ca on of the material during the design• Sharp-cornered and semi sharp-cornered design• Comfortable corner design suitable for manufacturing• Unfolding of ball corners • Unfolding of imported parts with accuracy faults• Automa c correc on of corner relieves• Tolerant and fl exible unfolding of slightly curved

free-formed surfaces• Unfolding of curved surfaces, for example conical

or ellip cal transi ons• Unfolding of non-relieved fl anges • Associa ve unfolding• Calcula on of shortening values based on K-factor, free

formulas, shortening values or TruTops calcula on • Defi ni on of shortening calcula on per bend• Ready-to-manufacture posi oning of bending lines and

bending tools at freeform surfaces• DXF-, GEO-, PN4000-Export• Transfer of manufacturing informa on (e.g. thread) to CAM interfaces• Display of correct bend marks and bend tables• Cost calcula on with export

SPI GmbHKurt-Fischer-Straße 30a22926 AhrensburgGermanywww.spi.de+49 (0) 4102 70 60