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NESTech is an authorized Partner of C3P Products in India

What is Geo Designer?

  • Geo-Designer is a powerful upfront Design for Manufacturing (DFM) tools for designers and manufacturing engineers with innovative technology.
  • It accelerates the design process for functions, manufacturability, enabling designs to move to production better and faster.
  • Geo-Designer is powerful, flexible, fast and easy to use and provides savings in downstream costs by quality improvement at the design stage.
  • Geo-Designer offer a new method to study the part geometry in 3D Iso-surface with flexible transparently, it is similar to the X-Ray and CT method
  • Geo-Designer can check wall thickness, draft angle, undercut, fillet radius for part evaluation at early design stage and support parting surface design
  • Ray method and the Mass Distribution Index (MDI) are supported for geometry analysis. Quickly locate critical thickness areas in the product
  • Geo-Designer can analysis the heat transfer and distribution for the casting process. The Heat Distribution Index (HDI) analysis is much faster and simple than any numerical simulation method.
  • Geo-Designer can make slider analysis to support mould design.
  • Geo-Designer can make ejection force analysis for both value and distribution to support ejection pin design.
  • Geo-Designer can make core checking and design for gravity casting part.
  • Built-in design capability for riser & runner, rib and chill design
  • Support mesh level geometry Boolean operation, very powerful and flexible operation.

Benefits

  • Quick, easy, flexible and powerful way of checking design for manufacturing process
  • Savings in downstream lead time and costs by improving quality at the early design stage
  • Locates critical regions in 3D CAD models to help manufacture process design
  • Improve design productivity
  • Very easy to use, less than 30 minutes to learn

GEO DESIGNER FEATURES

  • Allows for the design, simulation and engineering decisions to be handled by the same person from day one of the project.
  • Standalone software, also possible to integrate into 3D existed CAD systems
  • Build in last CAE technology for upfront analysis
  • Checks mass distribution, wall thickness, Mass Distribution Index( MDI), cooling rate prediction on complete model
  • Build in design capability
  • Support 3D ISO-surface and multi-sections mode
  • Ease in locating critical thickness areas
  • Advanced visualization for easy interpretation of results
  • Ability to clip model at any section
  • Dynamic information display at point click
  • Powerful filter mechanism to concentrate on region of interest. Detail information of analysis model: mass, volume, surface area, project area, heat modulus etc.
  • Support contour, section, Iso-surface and curve
  • Import STL, IGES, STEP file directly
  • Design result could be exported to 3D CAD system directly
  • Flexible report generation, VRML output
  • Support language: English, Japanese, Chinese (T/S)

WHO NEED GEO-DESIGNER

MARKETING

  • Co-design / Communication with customers
  • Detail part information(mass, volume)
  • Critical points of product
  • Fast defects predict
  • Quick / Immediately quotation base on difficult level of manufacturing

Process Design

  • Get real-time information for process design
  • product quick analysis (mass, volume, project area, surface area)
  • Thickness and Mass distribution (MDI)
  • Quick information to support process design (gating system design, right location and size or riser and feeder)
  • Cooling system design
  • Parting surface design

 

INDUSTRIAL NEEDS FOR GEOMETRY ANALYSIS

Make the product design better, To fulfill the manufacturing process

PRODUCT DESIGN

  • Product design & validation, strength and life time
  • Functions related to wall thickness, heat transfer
  • Weight reduction
  • Save cost for material

Plastic Mould

  • Uniform thickness is best
  • Variable thickness design should be validated
  • Defects caused by mass distribution & thickness
  • Mould design take account wall thickness

Casting Mould

  • Process design based on wall thickness
  • Assist riser, feeder and gating system design
  • Defects caused by wall thickness (porosity)
  • Cooling system to balance the mold temperature

 

Geo-Designer example for Gravity casting:

Objective:

  • Using Geo-Designer identify the region which has maximum thickness/volume in gravity casting part
  • Based on the input of MDI(mass distribution index) identify the location where riser is required
  • Design and optimize correct riser size
  • Export casting part and optimal riser geometry in standard CAD format STL, UGES, STEP etc.

STEPS:

  • Step 1: Import CAD geometry file in standard format STL/IGES/STEP
  • Step 2: Prepare analysis model with fully automatic meshing feature takes only one minute irrespective of size of the model.
  • Step 3: Observe part thickness using MDI (Mass Distribution Index). Analyze the thickest region in the geometry.
  • Step 4: In geometry where we have maximum thickness/volume will solidify in the last and which could lead to shrinkage, hence designer may put riser (in Gravity casting) in the region where we have maximum mass. Based on the MDI (Mass Distribution Index) identify the location where designer or foundry man need to put riser. It also helps to identify the location where gate should be inserted.
  • Step 5: Create riser at the required location, initially designer may not know the correct size for the riser. Again check MDI for both casting part and riser.
  • Step 6: From the MDI of casting part and riser, one can decide whether mass of the riser is enough or need to optimize the size of the riser. This way one can optimize riser without wasting days for simulation to get the correct size. One can also optimize and identify gate location.

GEO DESIGNER APPLICATION DEMONSTRATION

Shrinkage Porosity: Comparison of Geo-Designer results with production part

Shrinkage Porosity: Shrinkage porosity existed in the thicker region and bring a Level C of product quality.

GEO-DESIGNER: EXAMPLES IN SHEETMEAL DESIGN

Sheetmetal Forming: Fillet radius checking

Sheetmetal Forming: Undercut analysis to define the stamping direction

Sheetmetal Forming: Focus on the critical region with undercut

GEO-DESIGNER: EXAMPLES IN PRODUCT DESIGN

Draft checking is important for plastic ejection. Draft zone trend and draft angle numbers.

Thickness Check Thicker region is the reason to cause shrinkage porosity due to the higher MDI.

Section cut of thickness and Mass Distribution Index

GEO-DESIGNER: EXAMPLES IN GRAVITY CASTING DESIGN

Ray thickness of casting part, used for thin wall analysis usually

Build in riser design functions to provide online riser design capability and check it immediately

Riser & Feeder: The volume and mass of high MDI region can provide the reference number for riser size design

GEO-DESIGNER: EXAMPLES IN HIGH PRESSURE DIE CASTING DESIGN


Geo-Designer for MDI analysis, the thicker region will be the shrinkage porosity location

Gating System Design unbalanced mass distribution asking an optimized gating system

A few simple clicks bring the yield ratio increase from 67.1% to 92% due to the porosity improvement.