Everything you need to know about programming complex parts

Everything you need to know about programming complex parts

In CAD/CAM, and particularly in machining, the manufacturing of parts with complex shapes must comply with the functional specifications expressed by the designer or the creator. The geometric model built in CAD is a digital reference model that must be reproduced as accurately as possible during the manufacturing phase. Complex shapes can sometimes be difficult to reproduce: adequate programming is therefore the key to success in CAD/CAM.

What is a complex part?

We speak of a complex part when there are topologies that must go through many machining paths, often with risk of collision, as well as areas that are difficult to access. The notion of the complexity of a part does not only depend on its shape or its size. In fact, the nature of the material used, the presence of residual stresses, the risk of overheating or the precision that is required are all factors that contribute to complicating the task for the machine tool operators.

 

Examples of complex parts

  • Aluminum moulds for plastic injection;
  • Automobile cylinder heads;
  • Inconel turbine blades for aeronautics;
  • Titanium bearings for the aerospace industry.

 

TopSolid CAD/CAM Product Range

Steps for successful programming

Before proceeding to the manufacturing stage, it is essential to be well prepared. The CAD file of the part to be designed must first be checked and the tolerances adjusted. It is obviously necessary to choose the machine and tools adapted to the expected result and, if possible, to go through a simulation stage. 

 

Preliminary analysis

Before starting the manufacturing stage, all parts must be checked. First, make sure that it is the correct part and the correct version of the file. 

 

Tolerance management

For a complex CAD model to be machinable, it often requires modification. In fact, in most situations, CAD models are drawn from nominal dimensions. However, manufacturing and machining operations impose tolerances that will need to be adjusted in the CAD files. If you are using a CAD/CAM software, think about its ability to modify the dimensions afterward.  

 

Choosing machines and cutting tools

Not all machines are created equal. Choosing the right machine depends on many parameters such as the shape of the part, the size, the material, etc. Likewise, there is a multitude of cutting tools dedicated to machining complex parts. Their shape depends on the geometries to be drilled, turned or milled, and the material they are made of is selected according to the material to be machined as well as the kinematic parameters. The choice of machines and tools will therefore strongly determine the success of the machining process.  

 

Go through a simulation step before starting the manufacturing

Machining complex parts is expensive, so it is best to avoid messing up the first parts and having to perform machining operations again. Therefore, simulating the tool paths in parallel with the programming allows the operator to compare the simulated model with the machining in progress, which prevents the risk of collision and enables real-time reaction.

 

Advantages of TopSolid

One of the challenges of CAD/CAM is producing complex parts using the minimum number of steps, the ideal is to be able to independently machine a part, without disassembly. TopSolid’Cam is therefore able to manage the programming of lathes/milling machines, whether turning combined with 2D or 3D milling operations as well as 4-axis or 5-axis continuous.  

 

Managing the latest tools

TopSolid’Cam is able to manage the new barrel milling cutters. These milling cutters are best able to adapt to the shapes with low curvature, which makes it possible to significantly reduce the number of passes in the 5-axis tool path.  

 

Dynamic machining in turning and milling

TopSolid’Cam integrates a high-performance machining function, which makes it possible to keep a constant volume of material removed during the machining process and therefore to wear out the cutting tools less quickly.  

Easy to modify afterward

The TopSolid software, and in particular the version dedicated to TopSolid’Cam machining, is extremely flexible as it offers powerful features that allow you to modify the parts afterward. This is an asset for the manufacturing of complex parts, which require many adjustments.  

 

Automatic shape detection

TopSolid can automatically detect basic shapes such as grooves, drillings and pockets on models designed with TopSolid, but also on imported models. This makes the software a valuable ally that helps to guide the operator to the right machining strategies through intelligent topological analysis.  

 

Powerful algorithms

The programming of complex 4-axis and 5-axis parts requires high-performance simulation tools and powerful automation. TopSolid’Cam incorporates valuable automatic features such as collision detection, which helps to reduce machining defects. Thanks to all the machining algorithms offered by TopSolid, it is possible to process all the parts of a mould, for example.  

How do you manage a large interior design project using a CAD/CAM software?

How do you manage a large interior design project using a CAD/CAM software?

Carrying out all the work involved in site layout is a part of the daily life of interior designers. As a decoration and finishing specialist, he is called upon to manage projects of all sizes and to work from interior design concepts and execution drawings. CAD/CAM software is a valuable ally for large and complex projects. Let’s find out why together.

What do we mean by a large-scale project?

 

An interior design project is said to be “large-scale” when it is complex, when the surfaces involved are large and when several sectors of activity are involved. In general, designing surfaces larger than 50 m² is considered to be a large-scale job.

Examples of large-scale interior design projects

Designing a complete Hotel is considered to be a large-scale project. A hotel is not only made up of rooms, but also of a lobby, a restaurant, a bar and corridors, which must be harmoniously arranged to form an aesthetic whole. The nautical industry is also strongly affected by large-scale interior design and mainly the luxury yacht market. There are even super-yachts over 150 meters long with several thousand square meters of living space including spas, swimming pools, libraries and a large amount of nesting furniture. The arrangement of such a complicated project is usually entrusted to companies specializing in luxury naval carpentry.

The need for collaborative work

Large-scale interior design projects, such as those mentioned above, require the use of different but complementary professions. Specialized people with valuable expertise will thus be brought together to work in a coordinated manner. But when it comes to collaborative work, you need the right tools. Like BIM (Building Information Modeling), which consists of having employees working on a digital model, a large-scale interior design project can rely on modern work tools such as CAD/CAM software.

 

TopSolid CAD/CAM Product Range

How can CAD/CAM be involved in a large-scale interior design project?

 

A CAD/CAM software allows you to design parts in 3D model (CAD), but also includes the manufacturing part (CAM). It is therefore essential for companies that manufacture furniture using numerical control machines based on drawings. However, some software, such as TopSolid, offers other features which are particularly suitable for interior design projects.

 

TopSolid’Wood software and work by areas

 

One of the significant features of TopSolid’Wood is that it allows the user to work in several workspaces or areas. The concept is as follows: from a master file, the user will be able to create several workspaces in which the interior design of each area will be created. Once the design of each area is completed, the user can then generate a final assembly from the files.

 

Advantages of the “master” file

 

Working with a master file is convenient. But its main advantage is probably the flexibility it provides by facilitating file update processes. In addition, the TopSolid’Wood master file provides an overview using a construction tree that provides access to all workspaces. This allows you to make changes in order to define spaces even more quickly. In addition, TopSolid’Wood allows you to create a master file from the CAD files from other software.

 

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