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Compuplast provides advanced plastics processing simulation tools and services to the polymer processing industry. The company is a one-stop shop for computer simulation analysis for most polymer processing techniques, including extrusion, thermoforming, blowmolding and injection molding.
Compuplast International (Compuplast) was founded in 1991, and is mainly focused on design and delivery of tools for plastic profile extrusion. As a natural transition over time, plastic extrusion lines have been added to the company’s tools. Today the company collaborates with wellknown manufacturers such as IKEA, Mountfield, DuPont and Fatra. Industrial machinery Compuplast Plastics extrusion specialist uses Solid Edge with synchronous technology to substantially accelerate order response time and reduce development costs Compuplast employs five designers. They spend most of their time working on tools for plastic profile extrusion, but depending on incoming projects, the designers are focused accordingly.
Between the founding of the company until 2002, designers used 2D computer-aided design (CAD), the prevalent tool at the time. Then the company purchased licenses for use of Solid Edge® software for 3D development and, soon thereafter, acquired licenses of Simcenter Femap™ with Nastran® software for mean kinetic temperature (MKT) calculations. Both are solutions from product lifecycle management (PLM) specialist Siemens Digital Industries Software.
Due to the complexity of extrusion tools, the designers often choose a sequential process for creating models. However, they use synchronous technology exclusively to design machines and lines. Synchronous technology is more intuitive and aligned with the 3D environment. It is also highly suitable for adapting models that were developed in other computer programs.
Models can be created significantly faster by using Solid Edge with synchronous technology. “By using synchronous technology, the turnaround on model creation has been Compuplastnotably accelerated, in particular for modification to models taken over from subcontractors,” says Ing. Jan Král, managing director of Compuplast.
While enabling the smooth transfer of data from outside vendors, the main advantage of using synchronous technology is that it enables designers to change entire part surfaces according to specific rules without affecting the history tree and changing multiple elements.
With exceptional success using synchronous technology, Compuplast is currently exploring and evaluating its use for highly complex parts containing general spline surfaces.
Effective data management is essential to information sharing and high productivity. Solid Edge® software with the Insight™ design data management solution is an especially practical and productive tool for designers. For Compuplast’s designers, the biggest advantage of Solid Edge is that it always works with current versions of files, no matter who works on them. The previous process, which used a shared network disk to copy data to the appropriate user, caused lots of problems and confusion. This was quickly resolved by using Solid Edge with Insight. Another benefit is the ability to place all standard parts in a single place on the server, eliminating the need to copy parts for each new order. Král adds, “Using Solid Edge with Insight, Compuplast designers can easily search and make use of all data from a similar order for use with a new one. A process that previously took a week now takes only two to three days.”
Compuplast uses Simcenter Femap with Nastran for a number of calculations needs, including calculating extrusion heads and pin carriers (tools for creating cavities in profiles) in which there is a risk of ribs bending or even breaking off due to the high-melt pressure. Simcenter Femap with Nastran is also used for the calculation of structure loads in which, for example, deflections or permissible stresses are checked.
The company’s continued development of various technical equipment has led it to employ Siemens Digital Industries Software’s NX™ software. Among the applications, NX Flow was used with Simcenter Femap to address rheological analyses of liquid plastics in extrusion heads.
By using Siemens Digital Industries Software’s sophisticated modeling and simulation tools to assess melt behavior under various extrusion conditions, the design department’s analytical capabilities have measurably increased. As a result, the company has largely eliminated the need to make modifications to extrusion head designs, resulting in a substantial decrease in development cost and time as well as significantly fewer prototypes deployed at customer sites.