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Engineering, Architecture & Information TechnologyUQ InnovateCNC TRAININGLEVEL 1 – INVENTOR HSM TRAININGThe Integrated CAM Solution for Autodesk InventorInventor CAM is designed from the ground up to work inside Autodesk Inventor, providing alogical extension of the parametric environment into the CAM world. Experienced AutodeskInventor users will feel right at home working with Inventor CAM and will be able to createhigh-quality toolpaths within minutes. New users will benefit from the unmatched modellingand simulation capabilities, mechanical design solutions and quickly extend any knowledgegained to the CAM process. This will result in improved design quality and reduced productdevelopment time.Inventor CAM is available in several different levels. Depending on your needs InventorCAMcan generate high quality 2D, 3D, 5-axis milling, and turning toolpaths.The Inventor CAM interface is designed for CAD users and machinists alike. If you knowAutodesk Inventor, getting to know Inventor CAM will be easy and straightforward.Autodesk Inventor, Inventor CAM Express, Inventor CAM Premium and Inventor CAMUltimate - copyright Autodesk 2013-2019Getting StartedDownload free educational software linksInventor - nventor-professionalInventor HSM - nventor-hsm-ultimateIntro to Inventor HSMIntro to Inventor HSM part 1Intro to Inventor HSM part 2Document No: TU-014-APage 1 of 24
Engineering, Architecture & Information TechnologyUQ InnovateIntro to Inventor HSM part 3Inventor CAM brings fully embedded Computer-Aided Manufacturing (CAM) capabilitiesinto Autodesk Inventor and Autodesk Inventor LT. There are three levels of Inventor CAMand their capabilities are listed below:1. Inventor CAM Express - 2D/2.5 axis Milling functions for general machining.2. Inventor CAM Premium - 2D and 3D Milling, 3 2 Milling and Turning functions.3. Inventor CAM Ultimate - 2D, 3D, 3 2 Milling, 5x simultaneous Milling andTurning functions.Inventor CAM should be installed on top of Autodesk Inventor. When you start AutodeskInventor you will notice a CAM tab on the Inventor command ribbon. The commands on theCAM tab become visible, active, and ready for use after creating or opening an Inventor partor assembly file.Restriction: Assemblies are not supported in Autodesk Inventor LT.You can also load an existing file of any of the types supported by Autodesk Inventor or LT.These file types include CATIA, SolidWorks, NX, Pro Engineer, SAT, STEP, IGES, andmany other industry-standard file formats.The command ribbons and the commands they offer for the three different versions ofInventor CAM appear below:The Inventor CAM Express command ribbonDocument No: TU-014-APage 2 of 24
Engineering, Architecture & Information TechnologyUQ InnovateThe Inventor CAM Premium command ribbonThe Inventor CAM Ultimate command ribbonSuccessful Toolpath CreationThere are several steps you should follow to create your NC programmed part. Setup - Defines the part orientation, cutting plane, Stock size, XYZ Zero location andWork Coordinate System (WCS) offset.Toolpaths - Select the appropriate cutting strategy, cutting area, cutting tool andcutting steps.Simulation - Verify the toolpath meets your needs and cuts the correct areas. Edit theToolpath Strategy if needed.Post Process - Select a Post that matches your machine/control and NC output foryour machine.Document No: TU-014-APage 3 of 24
Engineering, Architecture & Information TechnologyUQ InnovateSetup and ToolTipsSetup lets you select the type of machine you will be programming, set your stock size andXYZ zero position. Since you can machine any face on the part, use the WCS parameters toalign the axis to your part. ToolTips are a powerful tool for learning about the systemparameters. Some ToolTips will have a simple description of the parameter, other will haveillustrations to make the point. Hover your cursor over the parameter to see the ToolTipappear. The Illustration on the right shows the ToolTip for the "Flip Z Axis" parameter.Document No: TU-014-APage 4 of 24
Engineering, Architecture & Information TechnologyUQ InnovateToolpath Strategies and The CAM BrowserThe CAM Browser is docked on the left side. It lets you view and modify the machiningstrategies associated with the current part. The CAM Browser becomes active once a part orassembly file is loaded and a toolpath strategy is selected from the CAM ribbon. Thisreplaces the Autodesk Inventor Model Browser.To create your first machining operation, simply select any of the toolpath strategies from theCAM toolbar. The type of toolpath required naturally depends on the geometry of your part.For a description of the individual machining strategies, please refer to the Inventor CAMHelp topics: 2D Machining Strategies and 3D Machining Strategies.After creating your Setup, you can select a Toolpath Strategy by clicking the appropriate iconfrom the command ribbon.In this example lets pick CAM tab2D Milling panel2D Pocket.You can also right-click in an empty portion of the graphics window to display the Inventormarking menu and then select the appropriate 2D Toolpath Strategy.The Operation dialog box will display in the CAM Browser at the left side of the graphicswindow. In its title bar is the name of the strategy selected. Just to the right of the strategyname is the operation number. Since this is the first 2D pocket operation for the part, thename displays as 2D Pocket1. The next 2D pocket operation will display as 2D Pocket2, andso on. This naming convention applies to all setup and machining strategies in InventorCAM.Toolpath DialogsAll toolpath dialogs follow a similar format. You will find 5 Tabs at the top of the dialog.This is an over view of each tab.Document No: TU-014-APage 5 of 24
Engineering, Architecture & Information TechnologyUQ InnovateNote: Be sure to look at the ToolTips for additional parameter information.Tool Tab Select a library tool orcreate a new toolSet Coolant typeSet the Feeds & Speedsappropriate for yourtool and materialGeometry Tab Document No: TU-014-APage 6 of 24Select the area or edgesto be machinedSelect containmentboundariesChange the ToolOrientation forIndexing or 2 3machining
Engineering, Architecture & Information TechnologyUQ InnovateHeights Tab Clearance Height is forthe tools approachpositionRetract Height is therapid position abovethe partFeed Height is thestarting feed positionTop Height is the topof the surface beingmachinedBottom Height is thefinal cut depthIf the Face or Edge youselected is the final cuttingdepth, no depth position needsto be specified. Most timesyou do not need to make anyadjustments, depending on thegeometry selected formachining.Document No: TU-014-APage 7 of 24
Engineering, Architecture & Information TechnologyUQ InnovatePasses Tab Document No: TU-014-APage 8 of 24Passes controls the sidecut parametersMulti Depths controlsmultiple step downsinto the partStock to leave forfuture cuts or finishpassesSmoothing will filtermultiple moves into acombined single move(line and arc filtering)
Engineering, Architecture & Information TechnologyUQ InnovateLinking Tab Linking determineshow the tool movesfrom one cut, to thenext cutSets the conditions forwhen, or if, the toolshould retractLeads controls how thetool will lead onto, oroff of the cutA view of the CAM Browser containing toolpaths, with the 2D Pocket toolpath selected.Document No: TU-014-APage 9 of 24
Engineering, Architecture & Information TechnologyUQ InnovateToolpath SimulationTo verify the toolpath, select one or more operations from the CAM Browser (multipleoperations can be selected by pressing and holding the Ctrl key while clicking with themouse), and thenCAM tabToolpath panelSimulateon the CAM ribbon.Stock SimulationTo invoke the solid simulation, enable the Stock check box in the Simulation dialog.Use the player controls at the bottom of the graphics window to Play, Stop, Rewind or Stepthru the toolpath simulation. The bottom slider controls the speed and direction (Forward orBackwards).Document No: TU-014-APage 10 of 24
Engineering, Architecture & Information TechnologyUQ InnovatePost ProcessingInventor CAM ships with a number of customizable post processors that can be invoked byselecting one or more operations from the CAM Browser, and clickingCAM tabToolpath panelPost Processon the CAM ribbon.Search thru the list for your Machine brand or Control brand. If you don’t see your machineor control, click the link at the bottom of the dialog to visit our on-line Post Processor library.Document No: TU-014-APage 11 of 24
Engineering, Architecture & Information TechnologyUQ InnovateLog MessagesIf an operation in the CAM Browser is overlaid with an orange checkmark, it indicates thatthe operation could not be generated successfully. To see a description of the problem orerror, right-click the operation and select Show Log from the pop-up context menu. The logis displayed in a dialog box and explains what went wrong.Associativity and RegenerationWhen you define operations in Inventor CAM, all relations to the model are associative. Thatmeans that if you change your model, you will not have to redefine any parameters andselections again - they will persist across model changes and rebuilds. You will, however,have to regenerate your operation whenever a part of the model is modified on which theoperation depends.When a modification of the model triggers invalidation of a toolpath, the regeneration symbol(i.e. a red cross) is overlaid on the corresponding operation and toolpath nodes in the CAMDocument No: TU-014-APage 12 of 24
Engineering, Architecture & Information TechnologyUQ InnovateBrowser. If you try to use an invalidated toolpath, you are notified that it requiresregeneration.You can regenerate all your operations either at once, or individually, depending on whetheryou choose Generate Toolpath (All) from the right-click pop-up context menu of the CAMBrowser, or choose Generate Toolpath. from the right-click pop-up context menu of asingle operation/toolpath node.Tip: Clicking CAM tab Toolpath panelall operations that require regeneration.Generatefrom the CAM ribbon regeneratesWhile regenerating toolpaths, the Inventor CAM Task Manager dialog is shown. This showsthe progress of any ongoing toolpath calculation, but can be hidden by clicking the Hidebutton so that you can continue working while the regeneration completes. Normally, 2Dtoolpaths generate in a matter of seconds, but some of the 3D strategies can take aconsiderable time to calculate, depending on the geometry and tolerances. If you have hiddenthe Task Manager dialog, you can restore its visibility by clicking CAM tab ManagepanelTask ManagerDocument No: TU-014-A.Page 13 of 24
Engineering, Architecture & Information TechnologyUQ Innovate2D Machining StrategiesDrilling and Hole MakingInventor CAM includes a powerful Drill tool for generating drilling, counterboring andtapping operations. The Circular strategy is used for milling cylindrical pockets and islands,while the Thread operation is used for thread milling cylindrical pockets and islands. TheBore operation allows you to bore mill cylindrical pockets and islands by selecting thecylindrical geometry directly. All operations are optimized to minimize tool travel andoverall cycle time. Both standard and customized cycles are supported for all point-to-pointoperations, including spot-drilling, deep drilling with chip break, etc.ContouringWith the Contouring strategies, you can easily machine 2D and 3D contours with separatelead-in and lead-out, and with or without tool compensation. Choose multiple roughing andfinishing passes and multiple depth cuts for any contour. Machine open and closed contourswithout creating additional geometry and eliminate sharp motion with corner smoothing.Document No: TU-014-APage 14 of 24
Engineering, Architecture & Information TechnologyUQ InnovatePocketThe Pocket toolpath is used for machining closed curves both with and without islands. Thetoolpath starts at the centre of the pocket and works its way outward. The entry can beselected anywhere on the model and includes possibilities for plunge, ramp, or at a pre-drilledposition. The special high-speed option creates a smooth toolpath and allows you to specify amaximum tool engagement. As a result, the feedrate can be increased significantly, reducingthe machining time and tool wear.FacingThe Facing strategy is designed for quick part facing to prepare the raw stock for furthermachining. It can also be used for clearing flat areas in general.Document No: TU-014-APage 15 of 24
Engineering, Architecture & Information TechnologyUQ InnovateAdaptive ClearingThe Adaptive Clearing strategy creates a roughing/clearing toolpath inside closed curvesboth with and without islands. This strategy avoids full-width cuts by progressively shavingmaterial off the remaining stock. The generated toolpath ensures that the cutting conditionsremain constant with a stable load on the tool. As a result, the feedrate can be increasedsignificantly, reducing the machining time by 40% or more which provides improved surfacequality and less tool wear.3D Machining StrategiesParallelParallel passes are one of the most widely used finishing strategies. The passes are parallel inthe XY plane and follow the surface in the Z direction. Parallel passes are best suited forshallow areas and down milling. To automatically detect shallow areas, the machining can beDocument No: TU-014-APage 16 of 24
Engineering, Architecture & Information TechnologyUQ Innovatelimited to a maximum angle between the tool tip and the surface. By selecting the downmilling option, tool deflection can be minimized when machining complex surfaces.ContourContour passes is the best strategy for finishing steep walls, but can be used for semi-finishand finish machining on the more vertical areas of a part. If a slope angle is specified, forexample 30 to 90 degrees, the steeper areas are machined, leaving the shallower areas up to30 degrees for more appropriate strategies.Horizontal ClearingThe Horizontal Clearing strategy automatically detects all the flat areas of the part andclears them with an offsetting path. When the flat area is shelved above the surroundingareas, the cutter moves beyond the flat areas to clean the edges. Using the optional maximumstepdown, horizontal faces can be machined in stages, making the horizontal clearing suitablefor both semi-finishing and finishing.Document No: TU-014-APage 17 of 24
Engineering, Architecture & Information TechnologyUQ InnovatePencilThe Pencil strategy creates toolpaths along internal corners and fillets with small radii,removing material that no other tool can reach. Whether using single or multiple passes, thePencil strategy is ideally suited for cleaning up after other finishing strategies.Scallop/Constant StepoverThe Scallop strategy creates passes that are at a constant distance from one another byoffsetting inward along the surface. The passes follow sloping and vertical walls to maintainthe stepover. Although Scallop finishing can be used to finish an entire part, it is mostcommonly used for rest machining, following a combination of Contour and Parallel passes.Like the other finishing strategies, machining can be limited by a contact angle range.Document No: TU-014-APage 18 of 24
Engineering, Architecture & Information TechnologyUQ InnovateSpiralSpiral machining creates a spiral toolpath from a given centre point, generating a constantcontact as it machines within a given boundary. It is ideally suited for use on round shallowparts using tool contact angles up to 40 degrees, in conjunction with Contour passes for themore vertical faces. The centre point of the detail to be machined is located automatically, orcan be user-specified. This strategy also supports tool contact angles.Morphed SpiralThe Morphed Spiral strategy is very similar to the Spiral strategy. However, a MorphedSpiral operation generates the spiral from the selected boundary as opposed to a Spiraloperation which trims the generated passes to the machining boundary. This means thatMorphed Spiral can be used for additional surfaces for which Spiral is not appropriate. Itcan also be very useful when machining free-form/organic surfaces. Although the ScallopDocument No: TU-014-APage 19 of 24
Engineering, Architecture & Information TechnologyUQ Innovatestrategy is often used for these types of surfaces, both the sharp corners and the linkingtransitions between the generated passes can result in visible marks. The Morphed Spiralstrategy generally provides a much smoother toolpath by avoiding these issues.Document No: TU-014-APage 20 of 24
Engineering, Architecture & Information TechnologyUQ InnovateRadialLike spiral machining, Radial machining also starts from a centre point, providing you withthe ability to machine radial parts. It also provides the option to stop short of the centre of theradial passes, where they become very dense. The centre point of the detail to be machined islocated automatically, or can be user-specified. This routine can also be used with toolcontact angles.PocketPocket is the conventional roughing strategy for clearing large quantities of material effectively. Thepart is cleared layer by layer with smooth offset contours maintaining climb milling throughout theoperation. To avoid plunging, the tool ramps down along a helical path between levels. To maintaina high feedrate, and thereby reducing machining time, sharp changes of direction are avoided bysmoothing the tool motion.Document No: TU-014-APage 21 of 24
Engineering, Architecture & Information TechnologyUQ InnovateAdaptive ClearingAdaptive Clearing is an innovative roughing strategy that offers significant improvementscompared to conventional roughing strategies. The strategy avoids full-width cuts byprogressively shaving material off the remaining stock. The generated toolpath ensures thatthe cutting conditions remain constant with a stable load on the tool. As a result, the feedratecan be increased significantly, reducing the machining time by 40% or more.3 2 MachiningAll 2D and 3D strategies support 3 2 machining (5-axis positioning) by rotating the part or the headof the machine tool through a combination of A, B, or C axis motions. Creating 3 2 operations is justa matter of selecting a work plane for the operation and Inventor CAM takes care of the rest. Oncein position, all machining strategies are available, and are both tooling and holder gouge protectedfor all the strategies that normally support this.Document No: TU-014-APage 22 of 24
Engineering, Architecture & Information TechnologyUQ InnovateMulti-Axis Machining StrategiesSwarfSwarf 5 Axis Milling is a side cutting process. It's perfect for parts with bevelled edges andtapered walls. The toolpath is calculated as if there was a straight edge across the 2 edges thatdefine the surface. As long as the face between those 2 edges is straight, you can use a Swarfcut to machine it.Important: This functionality is only available in Inventor CAM Ultimate.Multi-Axis ContourMulti-Axis Contour is used to machine 3D curves that lie on the face of the model. Thesecan be actual edges from the models faces, or 3D curves that have been projected onto theface of a model. Inventor CAM will create a toolpath that follows the selected curve/edge,while keeping normal/perpendicular to the surface of the model. Additional options willallow you to tilt the tool forwards or sideways. While you can compensate Left or Right ofthe selected curve, normally you would machine directly on Centre of the curve.Important: This functionality is only available in Inventor CAM Ultimate.Document No: TU-014-APage 23 of 24
Engineering, Architecture & Information TechnologyUQ InnovateTutorialsThis section includes a number of tutorials to help you familiarize yourself with InventorCAM. Along with each tutorial you will find a corresponding example file. These examplefiles are typically located here:C:\Users\Public\Documents\Autodesk\Inventor CAM\ExamplesHow to learn Inventor HSM – Basic – Chapter 1How to learn Inventor HSM – Basic – Chapter 2How to learn Inventor HSM – Basic – Chapter 3How to learn Inventor HSM – Basic – Chapter 4Note: For more educational videos click on this link.Document No: TU-014-APage 24 of 24
Intro to Inventor HSM part 3 Inventor CAM brings fully embedded Computer-Aided Manufacturing (CAM) capabilities into Autodesk Inventor and Autodesk Inventor LT. There are three levels of Inventor CAM and their capabilities are listed below: 1. Inventor CAM Express
