Knowledge Center

Explore case studies, learn about 3D technologies and manufacturing processes that Dartec applies for various projects.

Knowledge Center

Explore case studies, learn about 3D technologies and manufacturing processes that Dartec applies for various projects.

Success Stories

"DarTec Engineering exhibited exceptional engineering skills in retrieving missing data and geometry from completely damaged spare part samples using state-of-the-art reverse engineering techniques and equipment."

Saline Water Conversion Cooperation
Eng. Adnan Qahtani
View Case Study
Success Stories

"DarTec managed to scan the damaged pieces of the blower fan and digitally reconstruct them to form a single cohesive and homogeneous part as POM is not an available material for 3D printing"

Saudi Aramco
View Case Study
Success Stories

"DarTec’s reverse engineering services were solicited to create the required 3D CAD model to fabricate the part, which cost the customer only SR10,000 compared to the ~SR200,000 cost of replacing the entire die."


Jorge Ellis Cortez Reyes
Wahaj
View Case Study
Success Stories
View how Dartec helped reduce costs and lead times significantly through localization.

Saudi Electric Company
View Case Study
Previous
Next

Technology

3D Scanners

DarTec utilizes a variety of seven (7) different high-accuracy laser and optical scanners to conduct reverse engineering for spare parts with missing engineering drawings to capture the internal and external features of complicated parts themselves, which are then converted into Computer Aided Design files (CAD), which are then used to develop the 2D engineering drawings that are compliant with ASME Y14.5 standards, which are necessary to manufacture the parts with high-precision using local manufacturing facilities.

Below is a list of 3D scanning equipment that are available at DarTec’s facility in the Kingdom, which enables the versatility to reverse engineer any mechanical part regardless of size, material composition, or complexity:

C.1 Offsite Ultra High-Accuracy CMM/Laser Scanner

The Laser Design DS-Series offsite scanner utilizes both laser and CMM measurement technologies to scan parts and is suitable for precision spare parts scanning jobs (+/0.010mm (0.0004’’) Small-Part Accuracy & +/-0.025mm (0.001’’) Large-Part Accuracy), where the scanner requires a calibrated humidity and temperature control environment to operate and ensure ultimate accuracy measurements, which is suitable for precision gears, couplings, small step-shafts, mechanical seals, gas turbine parts and accessories.

C.2 Onsite High-Accuracy 3D Optical Scanner

The ATOS 5 GOM optical scanner uses the combined Blue-light and Photogrammetry technologies to scan spare parts (12 Megapixel Resolution), which is suitable for parts as small as 170mm, and up to 30m with high location resolution. It is most suitable for large stationary parts; such as, casings, housings, and large castings that require relatively high accuracy with a lot of details that would take a much longer time to reverse engineer using laser scanners

C.3 Onsite High-Accuracy 3D Optical Scanner

The ATOS CORE GOM optical scanner uses the combined Blue-light and Photogrammetry technologies to scan spare parts (5 Megapixel Resolution), which has a scan range of 185mm to 230mm, and a working distance of 440mm. It is most suitable for small to medium sized parts where high-quality data and process monitoring are important.

C.4 Onsite High-Accuracy 3D Optical Scanner

The FARO Quantum S Laser scanner utilizes both hard CMM probing and blue line laser scanning technologies. This arm is ISO 10360-12:2016 certified, ensuring the highest quality of scanned spare parts at a faster scanning rate and an ability to scan complex dark or reflective materials. Additionally, the Prizm green line laser scanner enables color scanning for high-resolution, colored point-cloud data capture and analysis

C.5 Offsite Laser/CMM Scanner

The Laser Design Space-Arm scanner utilizes both laser and CMM measurement technologies to scan parts and is suitable for both onsite and offsite scanning jobs (+/-0.08mm (0.003”) Accuracy), where the part or object to be scanned is relatively large and yet require high-level accuracy; such as, rotor shafts, large casings, housings, and relatively large parts that require feature accuracy.

C.6 Onsite/Offsite Handheld 3D Optical Scanner for Medium-Size Parts

The Artec Space Spider handheld scanner uses Blue-light technology to scan relatively small parts that require moderate accuracy (0.05mm Accuracy at 7.5 Frames Per Second – FPS) that are at times logistically difficult to remove from SEC’s site or warehouse. This scanner is suitable for parts that are moderately large with open features (no hidden features, undercuts, or inserts); such as, boiler tubes, agitator shafts, and various large gear configurations.

C.7 Onsite/Offsite Handheld 3D Optical Scanner for Large-Size Parts

The Artec Eva handheld scanner uses Light Emitting Diode (LED) scanning technology with relatively loose scanning accuracy (0.1mm Accuracy at 16 FPS), which is suitable for scanning relatively large parts or structures that require low accuracy; such as Weldment, Sheet metals, or structural steel parts

previous arrowprevious arrow
next arrownext arrow
Slider

3D Printers (Plastic Material)

Have a look at our various 3D Printing technologies for creating parts with plastic materials.

FDM Technology

Fused deposition modeling (FDM) is one of the simpler procedures of 3D printing, where the model is broken down into layers of 0.1 to 0.2 mm thickness, with a plastic wire pressed through a heating nozzle on a CNC-controlled print head moving from the contour of the 3D model.
Materials: PLA & ABS.

SLA Technology

Stereolithography (SLA) utilizes a focused UV laser to draw a pre-programmed design or shape on to the surface of a photopolymer vat to solidify the resin and form a single layer of the desired 3D object. Then, the build platform lowers one layer and a blade recoats the top of the tank with resin.
Material: Liquid Resin.

SLS Technology

Selective Laser Sintering (SLS) uses a laser to harden and bond small grains of plastic, ceramic, or other materials into layers. The laser traces the pattern of each cross section based on the 3D design onto a bed of powder. After one layer is built, the bed lowers and another layer is built on top of it. The bed then continues to lower until every layer is built and the part is complete.
Material: Polyamide & PA 11.

CJP Technology

Color Jet Printing (CJP) uses thin layers of powder to build up a 3D model. A colored binding agent extruded from a nozzle binds the powder together, solidifying the object with the desired colored surface.
Material: Full Color Sandstone (Gypsum Powder).

previous arrowprevious arrow
next arrownext arrow
Slider

3D Printers (Metal Material)

Once the 3D printing process is completed, optional post-printing processes are performed if requested. Those processes depend on the technology, material and requirements of the client. The most common simple post-printing process are sanding and glass-bead blasting, both of which are used to make the surfaces smoother for display purposes. Additional advanced post-printing processes or finishes include dying, machining, coating, heat treatment, etc.

SLM Technology

Selective Laser Melting (SLM) heats-up a laser in specified places on a bed of metallic powder based on the 3D CAD, where the CAD file dictates where melting will occur. Then, the machine will successively add another bed of powder above the melted layer until the object is complete.
Materials: Stainless Steel (SS316L) and Aluminum (AlSi10Mg).

DMLS Technology

Direct Metal Laser Sintering (DMLS) uses a precise laser beam to micro-weld powdered metals and alloys to form fully functional metal components based on CAD data.
Materials: Aluminum (AlSi10Mg), Titanium (TiAl6V7), and Inconel (IN718).

Binder Jetting Technology

Binder Jetting creates parts additively with a binding agent. The process uses a liquid binding agent deposited on the metal powder material, layer by layer, according to the CAD model.
Materials: Steel Alloy (60% Steel, 40% Bronze).

previous arrowprevious arrow
next arrownext arrow
Slider

Manufacturing Processes

Learn more about the manufacturing processes are examples of current manufacturing services that are available in the Kingdom

Parts to Reverse Engineer

Below is a list of part categories that we’ve worked on & delivered in the past that customers could consider when nominating parts for the reverse engineering:

Impellers (Open & Closed)
Impellers (Open & Closed)
Impellers (Open &
Closed)
Impellers (Open & Closed)
Gas Turbine Engine
Gas Turbine Engine
Boiler Igniter Automizers
Boiler Igniter Automizers
Wear Rings
Wear Rings
Sleeves
Sleeves
Nozzles
Cassings
Cassings
Fans
Fans
Bushings/Bush
Bushings/Bush
Couplings
Couplings
Couplings
Housings
Covers
Shafts
Gears (straight, helical, spur, worm, pinion, coupling, etc)
Generator Steal Rings
Generator Steal Rings
Swirlers
Split Rings
Split Rings
Previous
Next

Initiatives

Saudi Aramco is developing a world-class supply chain that’s locally accessible, reliable, and innovative to meet its needs as the world’s leading integrated energy and chemicals company. Aramco’s iktva program is the company’s response for the Kingdom’s 2030 Vision localization initiative.

Win your competitive advantage

Dartec offers one of the most exclusive and innovative technologies for manufacturing in Saudi Arabia

Start Chat
1
Do you have a question?
Welcome to Dartec! How can I help you?