Siemens Digital Industries Software has launched Additive Manufacturing (AM) Path Optimizer, a beta technology integrated in NX software, to help customers solve overheating challenges and help reduce scrap and increase the production yield of powder bed fusion manufactured parts. This latest extension of Siemens’ end-to-end AM solution feeds the digital thread, informing each step of the industrialised AM process.
Building on the Simcenter Additive Manufacturing Process Simulation solution announced in November 2018, AM Path Optimizer complements Siemens’ strategy for the digital twin of the manufacturing process and addresses errors originated from sub-optimal scan strategies and process parameters. These can lead to systematic failures due to overheating, which can cause scrap and inconsistencies in component quality.
Siemens has had success demonstrating this beta technology with Trumpf as a partner.
“With the AM Path Optimizer, Siemens and Trumpf can push the industrialisation of additive technologies further forward,” says Jeroen Risse, AM expert at Trumpf. “In our demonstrations we saw an improvement of geometrical accuracy, the elimination of re-coater errors caused by overheating, as well as a more homogenous surface quality. Also, the scrap rate is expected to be reduced significantly.”
The technology uses a novel approach, combining physics-based simulation with machine learning to analyse a full job file in few minutes before execution on the machine. In addition, the system can help reduce printing costs and enable the printing of components that are nearly impossible to achieve today.
“AM Path Optimizer will have a great impact on the use of AM for powder bed fusion manufactured parts,” states Zvi Feuer, senior vice president of manufacturing engineering software at Siemens Digital Industries Software.
For further information www.siemens.com
As the manufacture of carbon brake disks for aircraft requires specific skills, each of the 200-plus employees at Safran Landing Systems in Villeurbanne, France, play one of three complementary roles. Some weave carbon fibres, while others perform the heat treatment necessary for the conglomeration of the fibres into strong, compact stock with final forms that will be machined by the company’s third group of employees.
Increasing orders in the global aerospace industry motivated Safran to consider ways to become more efficient and responsive, with emphasis on the need for the company to improve its manufacturing methods to make a more reliable product.
MHAC Technologies, Safran’s partner in machine programming and a local distributor of Esprit CAM software, suggested the company implement Esprit, a full-spectrum CAM system for CNC programming, optimisation and simulation. With MHAC’s help, Safran installed Esprit’s SolidMillTurn Production Plus software, which can handle C-axis index and rotary milling, Y-axis index milling, B-axis index milling and 3rd rotary axis index milling. The system includes SolidMillTurn Traditional and Advanced, and SolidTturn Multispindle, a two-axis turning add-on to support multiple spindles.
When programming Safran’s CNC lathes and three- to five-axis milling centres, Esprit software enables a quick set up due to automatic macros that define the machining origins, offsets and machining assemblies. Patrick Gaydoux, an experienced programming technician at Safran, praises “the cloud-enabled KnowledgeBase integrated in Esprit, which automates and optimises the choice of optimal machining strategies based on a company’s accumulated best machining practices”.
Macros developed by the machine manufacturer and managed by Esprit software can automate and optimise operations according to the type of machining to be done and the stock measured directly on the machine. MHAC Technologies develops made-to-measure post processors for the specific machines in Safran’s workshop.
For further information www.espritcam.com
The launch of Vericut 9.0 has brought with it several enhancements designed to increase power and improve efficiency. These new features and benefits will be showcased at the Southern Manufacturing exhibition on 11-13 February, where CGTech will be presenting from stand C215.
Gavin Powell, CGTech technical director, says: “Vericut 9.0 is smarter than previous versions, offering more robust connections to tooling databases and the latest CAM systems. Most users will experience gains in performance, as well as sharper, clearer and more realistic views of machines and the machining process. Enhancements to Vericut’s free Reviewer app also lets programmers share with others [like machinists or quality assurance personnel] how parts are manufactured.”
The new features include an enhanced graphics display. Vericut 9.0’s greatly enhanced image quality makes it easier to spot problems and imperfections in machined parts. Users can switch seamlessly between workpiece, machine or profile views, or combine them in a variety of view layouts.
Another added feature is streamlined verification. Any of Vericut’s major functions, such as auto-diff, section, and x-caliper, can be used in any view, which streamlines the verification effort and increases productivity.
In terms of ‘Force’ optimisation, Force Analyse can now be used without any prior configuration, to spot potentially dangerous machining conditions or identify under-utilised tools. Force charts has a new fill comparison option to help visualise the changes made by Force optimisation to feed rates and chip loads.
Further additions and enhancements include those involving appearance settings, x-caliper, set-up plan, multi-tool station, tool change list panel and section window.
For further information www.cgtech.com
Tebis Version 4.0 has been introduced. The latest release offers many newly developed and enhanced functions, including indexed collision avoidance, an extended aggregate library, a simplified feature scanner, advanced five-axis simultaneous milling, more convenient machine simulation and more.
With regard to CAM automation, a better overview and clear operating structures are evident in the revised feature scanner. Features that are already connected to the component that were imported via data interfaces, or from part scanning at an earlier time – are now accounted for during scanning and do not have to be inserted again.
Tebis’ new ‘Auto’ function is also convenient: the component is completely scanned with no interruptions, and clearly evident features are automatically inserted. If several different features are required as part of a machining operation, users can jump to the appropriate areas after scanning and select the desired feature.
Concerning data processing, profile contours for turning can now be derived with absolute precision from the 3D component contour using the revised ‘Profile’ function. Circles are also mapped one-to-one. The subsequent blanks are more precise with no need for any design preparation of the profile contour.
Of particular note, machining time is said to be significantly reduced in the CAM suite’s milling function. Machine spindles are subject to lower loads due to machining in the axial direction, while side milling and downward machining can be easily combined, so users can fully benefit from the advantages of both strategies.
For further information www.tebis.com
Newly created versions of Expert and Orders Controller software from Jetcam International have been released containing a variety of added features and enhancements.
Jetcam’s Expert v20.31.00 benefits from several global interface enhancements, including a newly created screen macro recording feature that allows users to assign menu options or keyboard shortcuts to strings of commands, reducing the time to perform common functions. Furthermore, unlimited undo/redo commands allows the user to step back through multiple actions if required, while logic improvements across the board in areas such as fly cutting and common cutting can further reduce CNC cycle times.
JOC (Jetcam Orders Controller) 3.37 includes enhanced static nest ordering, allowing users to select one or more nests and see if they can be used to fulfil parts in the orders list. Users can then modify the number of runs of each nest in order to discover the optimum quantity required to fulfil the orders list. JOC can also create image thumbnails of components during CAD import, which can then be used by third-party systems, such as MRP, to show an image against a component.
For assisting customers where network stability and performance are sub-optimal, JOC now makes multiple attempts to ready component data, ensuring that temporary network glitches will not impact on processes.
“These releases focus on user experience, with features such as screen macro recording in Jetcam Expert and static nest ordering in JOC allowing users to perform tasks much quicker than before,” says Martin Bailey, general manager. “We’ve also made significant ‘under the bonnet’ enhancements to many of our automation technologies, so not only do they take less time to run, they also deliver improvements in CNC machine and material efficiency on the shop floor.”
For further information www.jetcam.com