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meet to the standard operating time, the direction in the project was changed to fix the same insert and look on to other parameters which could be modified to solve the problem.

4.2 Initial Solution:

With more thoughts on the problem it was understood that if the effect of interrupted cut could be reduced that could naturally reduce the turning operation time by more than half which could help us to meet with the standard. Now the challenge is how to reduce the impact of the interrupted cut, as the process of drilling the side holes cannot be done at a later stage due to other manufacturing problems. With these thoughts in mind we came out with a second idea which was to eliminate the interrupted cut process itself.

The idea was to fill the side holes with some kind of similar material as such as the original cutting material. This material on the side holes could help us to reduce the impact of the interrupted cut when making the pocket operation, and once the pocket operation is completed the extra material on the side holes can be removed. When this idea was discussed it was understood that there were similar kind of trials carried out with metal rods being used on the side holes to reduce the impact of the interrupted cut in the past. It was understood that the trials failed and there was no improvement in reducing the operation time.

The reasons for failure of the project was brainstormed, and it was understood that when the rods where tried to fit into the side drilled holes there was still a small gap which eventually led to the same interrupted cut operation. So now to solve the problem of interrupted cut the side holes should be drilled and then they have to be completely filled with some other material and then the pocket has to be made to reduce the impact of the interrupted cut to save time in the operation.

From the past experience we understand that the material should be tightly packed without any small gap to make this process work. For this purpose, different kinds of materials were thought and finally a polymeric wax like substance was finalized.

This compound is a special type of tooling compound which can be melted and poured into the total length of the part through the side holes and then pocket can be made in the middle of the part, and once the pocket has been made the tooling compound can be melted and taken out. Prior permissions were taken from various department of the company and a sample of the substance was ordered for trials. As this trial involves heating the part to remove the material (tooling compound), and also melting the tooling compound to pour it in the side drilled holes of the part involved some initial preparatory steps which could add some more time to the operation, so this trial was put on hold.

4.3 CNC Program Trails

The current CNC turning program was studied in detail to start the project in the direction of optimizing the speed, feed and depth of cut parameters. As the part length is long, an extended bar is used to do the turning operation, and as there are two interrupted cuts in the process the bar intends to vibrate 本论文由英语论文网提供整理，提供论文代写，英语论文代写，代写论文，代写英语论文，代写留学生论文，代写英文论文，留学生论文代写相关核心关键词搜索。