NC Milling Contents

The topics covered in the exercises are as follows.

• Creating a new manufacturing model
• Assembling the reference model
• Creating the workpiece
• Defining the style state for workpiece
• Defining the operation and workcell
• Creating new tools
• Concept of Accuracy in Creo Parametric

The topics covered are as follows.

• Defining a new face milling NC Sequence
• Defining relations for cutting parameters
• Optimizing the toolpath for longer tool life
• Set the toolpath to cut the material using climb milling strategy
• Avoiding direct plunge motion into the material
• Changing the start point
• How to perform multi step machining

It is the mostly used NC Sequence while machining a part. So it is given its due share in the course. There are total 15 exercises elaborating how to:

• Defining a new Volume milling NC Sequence
• Controlling the cutting condition at corners to avoid vibration
• Specifying the linear ramp motion instead of plunge
• Specifying the helical ramp motion
• Controlling the cutting feed along ramp motion
• Viewing a step-by-step simulation of material removal as the tool cuts the workpiece for verification
• Specifying an axis for plunge motion to the next slice
• Defining a Local Milling NC Sequence for rest milling operation
• Using Volume Milling for profiling of the walls of the mill volume
• Controlling the entry/exit condition of  the tool
• Controlling the surface finish by specifying scallop or cusp height
• Performing profiling and facing within a single NC Sequence by using pocketing strategy of Volume Milling
• Customization of the toolpath
• How to copy a NC Sequence and specify new references
• How to use excluded surfaces option to exclude the selected surfaces from profiling
• How to control the entry/exit into cut for longer tool life and less machine tool acceleration/deceleration
• Introduction to the following entry/exit movements between slices

1. Lea in, Lead out
2. Ramping
3. S-shape Connections

• Defining a local milling NC Sequence to machine the material left at corners by a previous tool
• Facing a part’s top surface
• Defining a Mill Window
• Specifying Tool Side for Mill Window
• Machining with Slice by Slice strategy
• Declaring Approach Walls for a Mill Volume
• Offsetting the selected surface of a Mill Volume
• Introduction to Smart retract option
• Introduction to Top Surfaces functionality

There are total 6 exercises elaborating how to:

• Defining a new Roughing NC Sequence
• Creating a Mill Window within and outside the NC Sequence and specifying its Depth
• Choosing the most suitable toolpath scanning strategy
• Optimizing the toolpath for high speed machining
• Eliminating the sudden direction changes with the smooth transition moves
• Scallop Height control
• Implementing different scanning strategies  within single sequence
• Defining a new Reroughing NC Sequence
• Viewing a step-by-step simulation of material removal of two sequences
• How to confine the re-roughing to a desired region

The topics covered in the exercise are as follows.

• Defining a new Plunge Milling NC Sequence
• Creating a Mill Window
• Creating a new plunge milling cutter

There are total 7 exercises in this section. The topics covered are as follows:

• Defining a Mill Surface as “Machinable Area”
• Defining a new Profile Milling NC Sequence
• Creating smooth entry/exit motions
• Setting up Retract plane at NC Sequence level  to reduce non-cutting time of tool
• Machining a sharp corner with a single pass of cutter
• Controlling the plunge movement of the tool at the center of a hole
• Machining the selected surfaces with multiple passes with a single NC Sequence.
• How to get the manufacturing information for a sequence
• Creating CL data for a given NC Sequence
• How to mirror the CL Data
• Machining an undercut
• Defining a side milling cutter
• Selection of surfaces by loop option
• Checking visually, by placing the tool at desired location, to see if any gouges occur
• Defining a new profile milling NC Sequence to machine and undercut
• Introduction to NORMAL_LEAD_STEP parameter
• Inserting a CL Command at the end of CL Data
• Patterning a NC Sequence
• Generating CL Data for a patterned NC Sequence
• Gouge checking  patterned NC Sequence
• Defining a Sloped mill surface
• Introduction to Check Surfaces functionality
• Setting the “option file” option related to check surfaces.

There are total 10 exercises in this section. The topics covered are as follows:

• Defining a new culine milling NC Sequence
• Introduction to different cut definition options to suit the surface topology
• Choosing the proper scanning strategy
• Controlling the connection movement between cutting passes
• Introduction to available entry/exit movements
• Creating multi-step toolpaths
• Defining Sloped Mill Surface to classify surfaces based upon slope angle
• Defining surface milling NC Sequence to finish a hole
• Controlling the cutting direction
• Selecting suitable SCAN_TYPE for selected surfaces
• Introduction to ARC_TANGENT entry/exit condition
• How to create CL data for a given NC Sequence
• How to mirror the CL Data
• Adding Auto Inner Cutlines
• Adding smooth Entry/Exit motions
• Adding smooth connection movements between tool passes
• Inserting a CL Command at the end of CL Data
• Patterning a NC Sequence
• Generating CL Data for a patterned NC Sequence
• Gouge checking  patterned NC Sequence

There are total 7 exercises in this section. The topics covered are as follows:

• Defining a new Finishing NC Sequence
• Creating a Mill Window
• Profiling of steep surfaces
• Optimizing the entry/exit into slice
• Machining the shallow surfaces of reference model
• Machining only the flat surfaces of reference model
• Excluding surfaces from toolpath computation
• Defining Close Loops for the part
• Specifying Tool Side for Mill Window
• Specifying Offset for Mill Window
• Machining the complete part using the Spiral scan

The topics covered in this section are as follows

• Machining rest material left by a previous tool.
• Connecting the passes with smoother motion.

There are total 7 exercises in this section. The topics covered are as follows:

• Defining a Composite datum curve
• Defining a 2-Axis trajectory milling NC Sequence.
• How to perform 2-Axis multi-step trajectory milling
• How to perform 2-Axis multi-pass trajectory milling
• Defining a 3-Axis trajectory milling NC Sequence.
• Adding smooth entry/exit motions.
• Checking the gouges against reference part.
• Shifting the toolpath upward to avoid gouging by using AXIS_SHIFT parameter
• How to perform 3-Axis multi-step trajectory milling.
• Machine a slot in multiple steps
• Controlling the connection movement between slices by CONNECTION_TYPE parameter
• Machining a slot (groove) which lies on a curved surface
• Face a part by a succession of trajectory passes
• How to machine a slot with helical cut motion.

The topics covered are as follows.

• Creating a new Engraving NC Sequence
• Defining a new Grooving Tool
• Machining the Groove feature with multiple cuts

There are total 6 exercises in this section. The topics covered are as follows:

• Introduction to different types of hole making sequences
• Standard Holemaking NC Sequence
• Countersink Holemaking NC Sequence
• Center-drilling the holes to the required depth
• Selection of holes for hole making sequence by following methods

1. Axes
2. Surfaces
3. Diameters
4. Parameters

• Creating Hole Sets to specify different depth options within a single sequence
• Specification of depth to which tool can travel by different methods
• Specification of tool retract height during traversing movement

Drilling of hole by using peck drilling and high-speed peck drilling techniques

There are total 2 exercises in this section. The topics covered are as follows:

• Defining a Single-Tooth thread mill cutter
• Defining a Multi-Tooth Thread Mill cutter
• Defining a new Thread Milling NC Sequence
• Creating smooth entry/exit motions
• Creating Single Pass toolpath for multi-teeth cutters
• Creating Interrupted Motion toolpaths
• Plunging along the axis of the hole

There are total 9 exercises in this section. The topics covered are as follows:

• Defining a new Flat End Mill
• Defining a Ball End Mill with Holder
• Defining a Bull Mill with Holder
• Defining a Sketched tool.
• Defining a Solid tool.
• Adding non-geometry parameters to the Solid tool
• How to take the advantage of Holder in a Trajectory Milling NC Sequence
• Advantage of Solid tools over the Standard tools
• Copying NC parameters from the tool into a NC Sequence non-associatively
• Copying NC parameters from the tool into a NC Sequence associatively

There are total 4 exercises in this section. The topics covered are as follows:

• How to get a printable list of tools used in the operation
• How to get a printable list all of the NC Sequences and their related information
• Creating a Holemaking Step in Process Manager
• Creating a 2-Axis Trajectory Milling Step in Process Manager
• Using Copy/Paste functionality to duplicate a step
• Creating a XML template from existing steps
• Using the XML template to create steps in another model

There are total 4 exercises in this section. The topics covered are as follows:

• Creating a new drawing
• Associating the Manufacturing model’s assembly to the drawing
• Defining tables and merging the cells
• Entering text and setting the width and height of the cells
• Defining repeat regions
• Entering the system and user defined parameters in the repeat regions
• Getting a list of parameters available for a tool and a NC Sequence
• Adding a filter to repeat region
• Inserting a new sheet
• Numeric formatting of parameters
• Inserting the different views of the model
• Changing display of a view to NO HIDDEN
• Changing the scale of sheet
• Displaying the toolpath in a drawing view
• Creating a PDF file of the drawing file

There are total 2 exercises in this section. The topics covered are as follows:

• What is manufacturing template?
• Create a new operation
• Define new cutting tools
• Associating Feeds and Speeds data with tool
• Create a site file
• Utilizing the cutter Feed Speed data within NC Sequence
• Create a PPRINT table
• Create style state
• How to use the  template for enhanced productivity

There are total 5 exercises in this section. The topics covered are as follows:

• What is post processing
• Introduction to Option File Generator
• Introduction to GPOST
• Defining a new option file
• Configuring Creo NC to select the option file automatically
• Modifying the option file settings to get the desired output
• Inserting program number at the beginning
• Inserting safety codes at the start of program.
• Inserting a blank before each address
• Changing the output order of addresses
• Changing the default format of addresses
• Changing the default behavior of radius output from IJK to R
• Inserting M30 at the end of MCD data
• Modify the option file to get the output for following drilling cycles
  1. Drilling
  2. Peck Drilling
  3. High Speed Peck Drilling
• Set the maximum federate to be output to tape file.
• Set the maximum spindle RPM to be output to tape file
• Set the option file to output operator messages to tape file
• Set the option file to output tool length compensation code G43
• Change the extension of tape file from .tap to .txt
• Set the maximum value of radius to be output to tape file
• Set the sequence number to be output with any specified increment