First article inspection is very important part of the manufacturing process. CMM is the widely used Inspection machine for first article inspection because of programming of one part and rest of the part can be measured without adding human and measurement errors. Secondly it is relatively fast and accurate. With …
Meaning of Six degrees of freedom (6DoF) is how a body can moves in three dimensional free space. Any thing around us is free to move forward/backward, up/down,left/right. This means a body can translate in three perpendicular axes. In fig 1 it shows that forward/backward, up/down, left/right motion can be …
There are many advantage of CMM. It can do very precise and accurate measurement. There are few advantage given below: Less Setup Time If we are doing inspection on surface plate then it is very time consuming activity. Where CMM can align a part in three axes in one go. …
Machine Control and Computer Hardware This unit is use to control movement to machine manually and with self learning program it can be programmed as a CNC machine. These controllers are microprocessor based. This machine can be controlled with joysticks. This joy stik function is to provide manual function to …
Probing System This part of the CMM touch the part and sense touched point coordinate which required for calculation of the dimensional geometries. There are different type and shape of probes are available and can be used depending upon the application. Originally probes were solid and hard but now day?s …
Types of Coordinate measurement machine Fixed Coordinate measurement machine Portable coordinate measurement machine Fixed Coordinate measurement machine Important features of the CMMs are To provide maximum rigidity to machines without excessive weight, all the moving parts, bed, Z-axis carriage, and Z-column are made of hollow box construction. ?To compensate systematic …
INTRODUCTION A?coordinate measuring machine?is a machine for measuring the geometrical dimension of an object. These machines are following types Manual machine (controlled by an operator) CNC machine (controlled by computer) This machine is having three moving axis (X, Y, Z). in this machine measurement has been taken by a probe …
? Clay modeling (or clay model making) was started by Harley earl (who was head of GM Styling studio) in 1930s. This design studio was earlier known as Art and color section, then name of this section was changed as design and styling department. Today all cars born with …
There are many di erent methods for acquiring shape data. Essentially, each method uses some mechanism or phenomenon for interacting with the surface or volume of the object of interest. There are non-contact methods, where light, sound or magnetic elds are used, while in others the surface is touched by …
Reverse engineering is a rapidly evolving discipline, which covers a multitude of activities. In this paper we will only be concerned with reverse engineering of shape, but a broader interpretation of the term to involve understanding of design intents and mechanisms is also possible. While conventional engineering transforms engineering concepts …
