Frittage laser en métal direct
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Prototype unique d'usinage CNC
Our direct metal laser sintering capabilities
Choose Rapidefficient Direct Metal Laser Sintering, Because it has high precision, Able to create complex shapes, Suitable for a variety of metals and efficient.
Frittage laser en métal direct (DMLS) is a 3D printing technology based on the selective sintering of metal powders by laser beams.The basic principle is to use a high-energy laser beam to sinter metal powder layer by layer, Form the desired three-dimensional structure.
Commonly used metal powder materials:
Acier inoxydable: Possède de bonnes propriétés mécaniques et une bonne résistance à la corrosion, Suitable for manufacturing structural parts and tools.
cobalt chromium alloy: High strength and high temperature resistance, Widely used in aerospace and medical fields.
Aerospace parts manufacturing
Able to accurately manufacture complex shapes, Aerospace components with thin-walled structures and extremely high performance requirements, like engine blades, Turbine disc, etc., Meeting the needs of the aerospace industry for lightweighting and high performance.
Production de dispositifs médicaux
High-precision medical devices can be customized and produced according to the patient’s unique physiological structure, such as orthopedic implants, Dental restorations, etc., Good compatibility with human tissue.
Auto parts processing
Rapidly manufacture complex shapes, Finely structured automotive parts, comme le bloc moteur, Transmission gears, etc., Helps improve vehicle performance and lightweight.
Fabrication de moules
Ability to efficiently manufacture molds with complex internal structures and high surface quality, Such as injection mold, Die casting mold, etc., Shorten mold development cycle and manufacturing costs.
Art design and creative products
Provides artists and designers with great creative freedom, Various unique, Complex artistic designs and creative products, like sculpture, Jewelry etc., Perfectly transform ideas into real objects.
Research and Education Model
Used for rapid manufacturing of complex experimental models in scientific research fields, and the production of teaching models in the field of education, Help researchers and students better understand and study relevant scientific principles and structures.
Direct metal laser sintering parts display, Every piece is carefully crafted, Represent complex designs with high precision, Showcase the unique charm of advanced manufacturing.
Extremely complex shapes can be manufactured accurately, with internal cutouts, thin wall, Parts with special curved surfaces and other structures, Can meet a variety of unique design needs, Almost no shape restrictions.
This technology is layered processing, Just use the corresponding metal powder material according to the shape of the part, Unsintered powder can be recycled and reused, Reduced material waste, Coûts de production réduits.
Laser sintering tightly combines metal powder particles, Formed parts have good density and mechanical properties, such as high intensity, Dureté élevée, Bonne résistance à l'usure, etc., Can be directly used in situations that require higher performance of parts.
Design preparation
1. Design parts using professional 3D modeling software, Ensure model accuracy and completeness, Consider part functional requirements and manufacturability.
2. Check the model for errors or unreasonable structures, such as self-intersection, Parts that are too thin, etc., and fix it.
Sélection des matériaux
1. Select the appropriate metal powder material according to the performance requirements and application scenarios of the part, such as stainless steel, Alliage en titane, Alliage d'aluminium, etc..
2. Understand the properties of different materials, such as intensity, dureté, Résistance à la corrosion, etc., To ensure that the selected material can meet the usage requirements of the part.
Equipment preparation
1. Choosing the right direct metal laser sintering equipment, Consider the accuracy of your equipment, Print size, Laser power and other parameters.
2. Inspect and debug equipment, Make sure equipment is in good working order, Includes laser system, powder conveying system, Control system, etc..
Slicing and parameter settings
1. Import 3D models into slicing software, Perform slicing, Set appropriate layer thickness, Laser power, Scanning speed and other parameters.
2. Parameter optimization based on material characteristics and part requirements, for optimal print quality and performance.
Printing process
1. Loading metal powder into the powder bed of the equipment, Start the device to start printing.
2. Observe the printing process, Ensure equipment is functioning properly, such as laser scanning tracks, Powder spreading conditions, etc., Deal with possible problems promptly.
3. After printing is completed, Wait for parts to cool to room temperature, Avoid deformation or cracking of parts due to temperature changes.
Post-traitement
1. Remove the printed part from the powder bed, Remove excess powder, Can be cleaned using compressed air or a vacuum cleaner.
2. Post-process parts, Such as heat treatment, Traitement de surface, etc., to improve part performance and surface quality.
3. Conduct quality inspection, Utiliser des outils de mesure, Microscope and other tools to check the dimensional accuracy of parts, qualité de surface, Internal structure, etc., Ensure parts meet design requirements.
Things to note
1. Operators need professional training, Be familiar with equipment operation and safety practices.
2. During printing, Pay attention to safety, Avoid laser damage to human body, En même temps, it is necessary to prevent dangerous situations such as powder leakage and explosion.
3. Perform regular maintenance and upkeep on equipment, Ensure equipment performance and accuracy, Extend the life of your equipment.
Que vous ayez besoin d'un petit nombre de pièces ou 10000 Plusieurs objets de production qui sont finalement mis en service, L'usinage CNC est une méthode de fabrication idéale. Voici les services CNC personnalisés que nous lançons.
By Rapidefficient, Vous pouvez compléter la fabrication de produits en peu de temps, afin de pouvoir entrer rapidement sur le marché.
La fabrication efficace des moisissures est un moyen rentable, Capable de combler l'écart entre la production d'échantillons et la production de masse. Laissez rapidement vos produits occuper le marché.
Pour les projets personnalisés, Notre équipe professionnelle vous aidera à obtenir les meilleurs produits en termes de qualité et d'efficacité.
Toutes les informations et les matériaux téléchargés sont sécurisés et confidentiels.
Insufficient density
Raison: Insufficient laser energy, Scan speed too fast, The metal powder particle size distribution is unreasonable or the powder layer thickness is inappropriate, etc., may cause the metal powder to fail to completely melt and fuse, Par conséquent, the density of the parts is insufficient.
Solution: Increase the laser power appropriately, Reduce scanning speed, Ensure that the laser energy can fully melt the metal powder; Optimize powder size distribution, Choosing the right powder material and particle size range; Adjust powder layer thickness, En général, Thinner powder layers help increase density, But being too thin may affect printing efficiency, Need to find a suitable balance point.
Dimensional accuracy deviation
Raison: Non-uniformity in laser spot size and shape, Mechanical accuracy error of equipment, Factors such as thermal expansion caused by temperature changes, This may cause the printed part size to deviate from the design size.
Solution: Calibrate and maintain equipment regularly, Ensure the accuracy of laser systems and mechanical motion systems; Lors de la conception de pièces, Taking into account the thermal expansion coefficient of the material, Leave a certain size margin; Optimize parameter settings of slicing software, Improve slicing precision and accuracy.
Higher surface roughness
Raison: Particle size of metal powder, Factors such as shape and laser scanning strategy can affect the surface roughness of the part. Par exemple, Larger particle size powders or inappropriate scanning strategies may result in uneven surface appearance on the part.
Solution: Smaller selection granularity, Regularly shaped metal powder; Adopt an appropriate scanning strategy, Such as increasing the number of laser scans, Adjust scanning spacing, etc., To improve the surface quality of parts; After printing is complete, Effectuer un post-traitement approprié, such as sandblasting, Grinding etc., further reduce surface roughness.
Deformation and warping issues
Raison: During printing, Uneven shrinkage of metal powder, The existence of temperature gradient and unreasonable design of part structure, etc., may cause deformation and warping of parts.
Solution: Optimize the structural design of parts, Try to avoid large flat surfaces, Cantilever structures and other parts that are prone to deformation; During printing, Use appropriate warm-up and cool-down strategies, Reduce temperature gradient, Reduce the internal stress of parts; For parts that are easily deformed, Support structures can be added, to increase the rigidity of the part, Prevent deformation, But the support needs to be removed after printing is completed, May have a certain impact on the surface quality of the parts.
Spheroidization phenomenon
Raison: High viscosity in liquid phase, High surface tension, The melt material does not wet the solid particles and substrate under the influence of factors such as, Metal powder may spheroidize during the laser sintering process, That is, the powder particles fail to fully spread and fuse, Plutôt, a spherical structure is formed. This affects the molding quality and surface flatness of the part.
Solution: Choosing the right metal powder material and particle size, Reduce the surface tension and liquid viscosity of powders; Adjust laser parameters, If appropriate, increase the scanning speed or reduce the laser power, Can reduce the spheroidization effect to a certain extent; Optimize powder spreading methods and process parameters, Ensure that the powder can be spread evenly on the substrate.
Laser system failure
Raison: Aging of laser generator, Damage or contamination of optical components, etc., may cause the laser power to decrease, Problems such as laser spot shape and uneven energy distribution, Affect print quality.
Solution: Perform regular maintenance and upkeep on the laser generator, Replace aging parts; Keep optics clean, avoid dust, The impact of oil and other contaminants on optical components; during use, Pay attention to monitoring the working status of the laser system, Find and handle faults promptly.
Powder conveying system failure
Raison: Powder feeder in powder conveying system, Components such as powder spreading rollers may become clogged, Problems such as wear or jamming, Resulting in poor powder transportation, Affecting the normal progress of the printing process.
Solution: Clean the powder feeder and spreading roller regularly, Prevent powder clogging; Inspecting the mechanical components of the powder conveying system, Promptly replace worn or damaged parts; Optimize storage and delivery conditions for powders, Keep the powder away from moisture, Problems such as caking.
Material compatibility issues
Raison: Different metal powder materials have different physical and chemical properties, In the direct metal laser sintering process, Incompatibilities between materials may occur, Causing print failure or poor part performance.
Solution: When choosing materials, Full consideration should be given to material compatibility, Carry out relevant tests and verifications; For parts that require the use of multiple materials, Can be printed in layers or mixed materials, Cependant, we need to pay attention to the interface bonding issues between different materials.
Oxidation and contamination of powder materials
Raison: Metal powder during storage and use, Vulnerable to oxidation and contamination, This can affect material performance and print quality.
Solution: When storing metal powder, keep dry, sealed environment, Avoid moisture and oxidation of powder; before use, Screening and purification of powders, Remove impurities and oxides; During printing, Protective gas can be used, such as argon, Nitrogen, etc., To prevent oxidation of metal powder.
Nos services d'usinage CNC ont été félicités par des clients mondiaux de différents domaines, Nous fournissons des composants d'usinage CNC à une variété d'industries, Couvre les éléments suivants et plus.
Pièces de grande taille, Comme les pare-chocs ABS usinés CNC, Cuteau d'instruments PC / ABS et pièces automobiles de précision, Réflecteur par exemple, lentille, Assemblage du volant, moteur, transmission.
Pièces de robot pour l'industrie de la robotique et de l'automatisation, actuateur, effecteur final, Moteur, Équipement de contrôle automatique, Luminaires et boîtiers.
Plaque d'os en acier inoxydable ou en titane, prothèse, équipement respiratoire, dispositif portable, équipement de diagnostic, modèle anatomique, Composants pour les besoins médicaux tels que les instruments chirurgicaux.
Moteur aérodynamique, corps, turbine, frein, pièces de pneu, système d'éclairage, Pompe à vide et pièces de pompe à carburant.
Produits de consommation, comme les boîtiers d'équipement électronique, bouton, poignée, Bouton, changer, Appareils numériques portables, Produits de cuisine, équipement sportif.
Nouvelles composantes de l'industrie de l'énergie, par exemple. échangeur de chaleur, soupape, pipeline, Pompes et accessoires, Composants hydrauliques, Composants de la batterie, composants du panneau solaire, Cadre et roue.
Logement électronique, tapis roulant, attache, connecteur, Composants du générateur, luminaires, Pièces de machines et d'outils pour les machines industrielles.
Les modèles réels peuvent être créés en fonction des exigences de semi-conducteurs, Modèles d'ingénierie et autres équipements expérimentaux, Nous travaillons avec des universités du monde.
