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CT Services

3D Scan Technology, BJB – Technology for Light, CT Services
Kunststoff-Laser-Sintern – BJB Rapid Prototyping and Manufacturing
May 7, 2021 at 4:56 pm 0

Die Technologie: Laser-Sintern als Schlüssel für e-Manufacturing

Laser-Sintern ist bekannt als die Technologie für den kürzesten Weg von der Idee zur Marktreife eines Produktes. Innovative Unternehmen der unterschiedlichsten Branchen nutzen das Verfahren für e-Manufacturing - die schnelle, flexible und kostengünstige Produktion direkt aus elektronischen Daten für alle Phasen des Produktlebenszyklus.

Physikalisches Prinzip:

Grundlegendes Prinzip des Laser-Sinterns ist das schichtweise Verschmelzen von Kunststoffpulver durch einen CO2-Laser. Der Laser erhitzt das Kunststoffpulver kurzzeitig auf eine Temperatur oberhalb des Schmelzpunkts. Durch diese Erhitzung und die nachfolgende Abkühlung entsteht ein Festkörper. In jeder Schicht wird der Querschnitt der Bauteile mit dem Laserstrahl so belichtet, das die belichteten Stellen mit der darunterliegenden, bereits verfestigten Schicht, verbunden werden. So entstehen Schicht für Schicht dreidimensionale Bauteile.

Allgemeines Funktionsprinzip des Laser-Sinterns:

Bauprozess:

Für den Bauprozess wird der verfahrbare Boden eines Baubehälters in eine obere Startposition gefahren und mit einer dünnen Schicht Polyamidpulver beschichtet. Diese Schicht wird durch eine Heizung auf eine Grundtemperatur erwärmt und durch Belichten mit einem rechnergesteuerten Laserstrahl wird das Kunststoffpulver analog der berechneten Geometrie verfestigt. Danach wird der Boden um eine Schichtdicke abgesenkt und eine neue Pulverschicht aufgetragen. Erneut wird das Pulver erwärmt und belichtet, der Boden abgesenkt und Kunststoffpulver aufgetragen. Durch ständiges Wiederholen dieses Ablaufs entsteht das im losen Pulver liegende Bauteil.


Modelle für einen Entwicklungsprozess

Modelle für einen Entwicklungsprozess


Kleinserie eines KFZ-Tools

Unser Fazit:

Mit dem Einsatz von Kunststoff-Lasersintersystemen haben wir bei BJB bereits während der Entwicklung unsere Produkte buchstäblich „in der eigenen Hand“. Somit erkennen wir bereits im Vorfeld wo es Probleme geben könnte.

Für Kleinserien können wir sehr wirtschaftlich, komplett ohne Werkzeugkosten auf Lasersinterteile setzen. Flammgeschützt oder Glasfaserverstärkt erfüllen diese Teile auch höchste technische Anforderungen.

Neugierig geworden?

Hier gibt es mehr Informationen:
https://www.bjb.com/de/3d-messtechnik
https://www.bjb.com/media/pdf/0a/f7/fc/BJB_Laser_Sintern_Einzelseiten.pdf

About BJB

Founded in 1867, BJB has been associated with lighting technology for more than 150 years. Since the beginning of the 20th century, BJB has been a specialist in the development and production of lighting solutions. Our product portfolio includes LED connection systems, terminal blocks, connector systems, mounting systems, SMD terminal blocks, optics and solutions for the circular economy in the lighting industry. In other words: BJB provides “Technology for Light”. In a further area of operation – ADS automation – we develop, build and supply customer-specific systems for the automation of light fitting production. A third important element is our lighting solutions for domestic appliances, as a dominant player in the industry.

VISIT US at BJB.com – We are #TechnologyForLight

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3D Scan Technology, BJB – Technology for Light, CT Services
BJB supports all aspects of industrial tomography including optical 3D scanning technology and rapid prototyping
April 7, 2021 at 5:07 pm 0

Does your business have the need for assistance with all aspects of industrial computed tomography? BJB has the experience and technology to help you with your online consulting and webinars, as well as major projects your business is focused on.

Together, we will advance your development, production and quality control...so contact us today to have an online consulting sessions or individualized webinar for your team. Here's a snapshot of our services:

Our CT Laboratory: Layer by Layer 3D Views

X-Ray computed tomography is familiar to most from a medical perspective, but is also increasingly applied in the industrial sector for non-destructive analysis. It gives exceptional insight into the internal and external geometries of any products and components, and works with a wide variety of materials as plastic, metal and ceramics.

The system in our CT laboratory composes a layer by layer 3D volume model with highly detailed information, even for complex assemblies.

The resulting model makes analysis of a variety of specifications much easier:

  • Weak points and errors can clearly be identified
  • Dimensional tolerance scan be tightly controlled
  • Detection of deformed components during the product assembly
  • Voids in injection-molded plastic components can be discovered

3D Scan Technology & Measurement

BJB's optical 3D scan technology can provide three different stereo systems by GOM to provide the best analysis results of large-volume components and materials with high radiological densities.

The sensors provide evenly distributed 3D coordinates for each individual measurement. Up to 12 million independent measuring points are recorded within seconds. The measurement data is characterized by high detail reproduction, so that even very small component features can be measured.

The measurement data enables:

  • CAD false colour comparison (variance comparison)
  • Full dimensional check reports
  • Assembly analyses
  • Porosity and inclusion analysis (shrinkage cavity analysis)
  • Complete measurement test reports

By using industrial computed tomography at BJB, we can better control the quality and safety of materials, parts and components in advance of series production.

With the experience we have gained from our own production, we can provide you with the following BJB measurement technology services in the field of CT and stereo camera measurement technology.

Additional Details included:

  • High-resolution industrial computer tomographs
  • Optical 3D stereo camera measurement for large components
  • Volume analyses of CT data from individual components and assemblies
  • Simple CAI analyses as target-actual comparison in false colour display
  • Porosity and inclusion analyses (shrinkage cavity analysis)
  • Complete measurement test reports 
  • Module analyses
  • Troubleshooting / defect detection
  • Films of CT data or x-ray data
  • Films of 3D CT rendering
  • Contract analyses with GOM Inspect Pro and VG Studio Max also of your CT or STL datasets
  • Reverse engineering on the basis of CT or camera datasets

Industrial Computed Tomography

This technology can be used for the non-destructive analysis of any component. The aim is to create a data model on which computerized analyses are carried out.

Important analyses include:

- CAD false colour comparison (target-actual comparison)
- Assembly analyses
- Porosity and inclusion analysis (shrinkage cavity analysis) 
- Complete measurement test reports

To create the data models, the component is x-rayed in the CT system. An x-ray image is produced. The component is then rotated in the x-ray beam and up to 3,500 x-ray images are recorded in the course of the rotation. These x-ray images are used to calculate the tomographic slices and the 3D model of the component on which the analyses can then be carried out.

Bottom line, we are specialists in mastering difficult problems in the fields of measurement technology, research, development and design as well as quality assurance and complaints processing. Put us to the test!

ABOUT BJB:

Founded in 1867, BJB has been associated with lighting technology for more than 150 years. Since the beginning of the 20th century, BJB has been a specialist in the development and production of lighting solutions. Our product portfolio includes LED connection systems, terminal blocks, connector systems, mounting systems, SMD terminal blocks, optics and solutions for the circular economy in the lighting industry. In other words: BJB provides “Technology for Light”. In a further area of operation – ADS automation – we develop, build and supply customer-specific systems for the automation of light fitting production. A third important element is our lighting solutions for domestic appliances, as a dominant player in the industry.

VISIT US at BJB.com – We are #TechnologyForLight

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CT Services
BJB Expands CT Technology Services with 3D Scan Technology & Measurement
January 20, 2020 at 9:07 pm 0

As we've previously highlighted, BJB offers innovative X-Ray CT-Services and we are excited to share that this has now expanded to include 3D scan technology and measurement.

BJB's optical 3D scan technology can provide three different stereo systems by GOM and are available for large-volume components and materials with high radiological densities.

The sensors provide extensively distributed 3D coordinates for each individual measurement. Up to 12 million independent measuring points are recorded within seconds. The measurement data is characterized by high detail reproduction, so that even very small component features can be measured.

The measurement data enables:

  • CAD false colour comparison (variance comparison)
  • Full dimensional check reports
  • Assembly analyses
  • Porosity and inclusion analysis (shrinkage cavity analysis)
  • Complete measurement test reports

To create the data models, the component is x-rayed in the CT system. an x-ray image is produced. the component is then rotated in the x-ray beam and up to 3,500 x-ray images are recorded in the course of the rotation. These x-ray images are used to calculate the tomographic slices and the 3D model of the component on which the analyses can then be carried out.

For more information on this product, please visit our website and contact us!

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BJB – Technology for Light, CT Services
BJB Offering Innovative X-Ray CT-Services to Companies
October 14, 2019 at 12:20 am 0

For some time, BJB has been operating its x-ray computed tomography laboratory for its own purposes. This innovative service and technology is offered also to other companies. The unique system can accommodate any parts from a wide variety of materials up to a height of 750 mm, a diameter of 265 mm and a weight of 50kg. Most importantly, we can measure with a reproducible accuracy of up to +-5 um and can recognize details down to one micrometer.

BJB's, due to our engineering expertise, has better control of the quality and safety of materials, along with the parts and components before the start of series production. We now provide our innovative CT solutions and cost-efficient services to other companies.

Our CT Laboratory: Layer by Layer 3D Views

X-Ray computed tomography is familiar to most from a medical perspective. But it is also increasingly gaining ground in the industrial sector as a non-destructive analysis technology for the internal and external geometries of any test samples made of plastic, metal, ceramics, or other materials.

The system in our CT laboratory provides internal views layer by layer via a 3D volume model and provides detailed information, even for complex assemblies. Each of these details can be closely examined. Weak points and errors can be clearly identified. For instance:

  • Weak points and errors can clearly be identified
  • Dimensional tolerances, in incorrect, can be identified immediately
  • Were any components deformed during product assembly?
  • Are there voids in injection-molded plastic components were there should not be?

A CT analysis answers these and many other questions. Precise internal views give designers important information and speed up the product development process considerably. From dimensional measurements to the initial sample test report, this method also shortens the approval process.

From a technical point of view, computed tomography involves the computation of a three-dimensional volume model of the test object from a large number of two-dimensional x-ray images by means of complex mathematical calculations. This volume model consists of small individual volume elements, so-called voxels, which contain relative density information on the test object, thereby providing information on all external and internal geometries

The primary menu below provides an overview of the various analysis methods available:

  • Radiography Test: A simple x-ray image can help to solve many issues. Do you have components or assemblies which you would like to examine by non-destructive means? It is possible, for example, to carry out assessments of assembly situation
  • Slice Analysis: Tomographic slices enable a test piece to be examined slice by slice. The system calculates slices of a certain thickness through the test piece at specific intervals.
  • Defect Analysis: Air pockets in plastic parts are usually unwelcome. The resultant weakening of the material causes the plastic to break or leads to a reduction in dielectric strength. Through the automatic identification of imperfections in a test piece, it is possible to make a very rapid assessment of the distribution and porosity of the test piece.  Defects are displayed in colour in the volume model.
  • Wall Thickness Analysis: In order to save on material, plastic parts are being designed with ever thinner walls. Wall thickness analysis can be performed to investigate the wall thicknesses of your components. On a model of your test piece, the wall thickness is analysed with an angle of aperture to be determined and is displayed in a false-colour representation of the test piece.
  • Target-Actual Comparison: The target-actual comparison results from the superimposition of the measured volume model or surface model and the CAD dataset from your design department. The model obtained from the test piece is superimposed on the CAD model by means of a specific alignment logic. In the second step, the deviation between the model obtained and the CAD specification is calculated and displayed via a false-colour model of the test piece. The colours represent a certain deviation on the basis of a freely selectable scale. 
  • Measurement: Measurement is done for CAD-referenced measurement, ISTR-Initial Sample Test Report, and Creation of surface models / Reverse Engineering.
  • Service Portfolio & Measurement: The system can accommodate any parts from a wide variety of materials up to a height of 750 mm, a diameter of 265 mm and a weight of 50 kg. We can measure with a reproducible accuracy of up to +-5 μm and can recognize details down to one micrometre.

To contact an expert at BJB who can help you learn more, please contact our CT Specialists! They look forward to assisting you.

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