Tech@Edu

 DESTRUCTIVE AND NON-DESTRUCTIVE TESTING Testing is the physical performance of the operations to determine the qualitative measure to certain properties such as mechanical. Testing aims to determine the quality. Types of Testing- There are two types of testing 1. Destructive Testing 2. Non-Destructive Testing 1. Destructive Testing The destructive testing is the testing in which test piece or specimen is destroyed during the test. After testing the specimen remain no longer to useful for further use. The following destructive test are- a. Tensile testing (TT) b. Bend testing (BT) c. Impact testing (IT) d. Nick-break testing (NBT) e. Hardness testing (HT) f. Etch testing (ET) 2. Non-Destructive Testing The Non-destructive testing is the testing in which test piece or specimen is not destroyed during the test. After testing the specimen is useful for further use. The following non-destructive test are- a. Visual testing (VT) b. Stethoscopic test (ST) c. X-Ray & Gama Ray test d

AM PROCESS STEPS Additive Manufacturing involves a number of steps that move from the virtual CAD (Computer Aided Design) description to the physical resultant part. Different products will involve Additive Manufacturing in different ways and to different degrees. Small, relatively simple products may only make use of Additive Manufacturing for visualization models, while larger, more complex products with greater engineering content may involve Additive Manufacturing during numerous stages and iterations throughout the development process. All the Additive manufacturing processes have the following eight common steps- Step 1- 3D model creation Step 2- STL file creation Step 3- STL file transfer Step 4- Machine set up Step 5- Build Step 6- Part removal Step 7- Post processing Step 8- Applications Step 1- 3D model creation All Additive Manufacturing parts must start from a software model that fully describes the external geometry. This can involve the use of almost any CAD solid modelin

 ADDITIVE MANUFACTURING "Additive manufacturing (AM) or additive layer manufacturing or 3D printing, a computer controlled process that creates three dimensional objects by depositing materials in the form of layers or fine droplets." It is defined as additive because the material is added sequentially, as opposed to more traditional (subtractive) manufacturing where material is removed from a solid block until the final part is left. The concept had been around since the 1940s, Hideo Kodama of the Nagoya Municipal Industrial Research Institute developed the earliest 3D printing manufacturing equipment in 1980, when he invented two additive methods for fabricating 3D models. History of Additive Manufacturing 1940s and 1950s The general concept and procedure to be used in 3D-printing was first described by Murray Leinster in his 1945 short story Things Pass By. 1970s Johannes F Gottwald patented the Liquid Metal Recorder. It was continuous Inkjet metal material device. 1980s I