12/30/2023 0 Comments 4d printing vs 3d printing![]() ![]() In this approach, the printing process is carried out by a layer-by-layer method. ![]() The initial model of 3D printing used a stereo-lithography (SL) technique and was inspired by photo-polymerization of liquid resin by ultraviolet (UV) light. Three-dimensional printing (3D printing), introduced in additive manufacturing categories, was proposed for the first time by Charles Hull. Generally, the AM technologies have seven principal ingredients, namely material extrusion, vat polymerization, material jetting, sheet lamination, binder jetting, powder bed fusion, and directed energy deposition. ![]() Rapid prototyping (RP) and additive manufacturing (AM) technologies have been used in many applications nowadays. It is worth noting that despite significant research that has been carried out into 4D printing, it might be more valuable if some investigation is done into 4D bio-printing applications and how this approach will be developed. On the other hand, major challenges in this technology are explained along with some suggestions for future works to address existing limitations. In this regard, a particular emphasis is dedicated to the latest progress in the innovation and development of stimuli-responsive materials that are activated and respond over time to physical, chemical, and biological stimuli and their exploitation through 3D printing methods to fabrication 4D printing smart parts such as intelligent tissue-engineered scaffolds, smart orthopedic implants, and targeted drug delivery systems. Also, it describes smart medical implants, tissue engineering, and bioprinting and how they are being used for the 4D printing approach in medical engineering applications. This research aims to show the most recent applications of 4D printing technology and smart materials in medical engineering which can show better prospective of 4D printing applications in the future. Thus, an attractive prospect in the medical field is the integration of the 4D printing approach along with smart materials. Smart materials with their flexible properties can reshape, recolor, or change function under the effect of the internal or exterior stimuli. Since 4D printing can create a dynamic structure with stimuli-responsive materials, the applications of smart materials, stimulus, and 3D printing are the effective criteria in 4D printing technology. Blending time with variations caused by the situation has many beneficial aspects such as perceptibility and adaptability. Nowadays, bioscience has introduced some ideas which can be fulfilled by 4D printing. All benefits and future goals involving 4D printing is mainly speculation at this point as it isn’t commercially available.The addition of the time dimension to three-dimensional (3D) printing has introduced four-dimensional (4D) printing technology, which has gained considerable attention in different fields such as medical, art, and engineering. 4D printing is still being tested and has not truly emerged as a useful technology for any industry as of yet.These will in turn benefit the customers in the long run as consumers will see cheaper and improved goods and services as a result of 4D printing being implemented into business processes.Change how companies compete, if one company improves through this technology all companies in the industries must also improve to keep up, leading to more competition in the market.Increase productivity in a company if integrated correctly, allowing businesses to output goods and services quicker or output more product with the same amount of input as before 4D printing was implemented. ![]()
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