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4 votes
Accepted

What does "bedding-in" mean in casting technology?

According to p.33 of this presentation 'bedding in' is a process of packing the molding sand by ramming the sand around and under the pattern until the sand is tightly packed and even with the parting ...
BobT's user avatar
  • 248
2 votes

Simulating production of a product by a machine

A single machine with no input constraints can be modeled as an average. First of all, if you're going to model manufacturing, model shifts that make sense to people in manufacturing. Shifts in ...
Tiger Guy's user avatar
  • 6,901
1 vote

A camera for crime investigation

No. the light given off by the acts involving a months-old crime are long gone and cannot be collected together again to make pictures.
niels nielsen's user avatar
1 vote

How to determine the effect of manufacturing variability on assembly of items

A professional statistician can tell you what sample size is required to achieve 95/95, but note that a yearly production volume of 500 units means about 2 units/day. This means statistical quality ...
niels nielsen's user avatar
1 vote

Does gravity have any effect on metal casting?

Redundant ; How would you pour with no gravity; the metal would just sit in the ladle after you turn it upside-down. Floating of slag/dross , and hydrogen gas ( always present to some degree) would ...
blacksmith37's user avatar
  • 6,134
1 vote

Does gravity have any effect on metal casting?

It certainly does: any slag inclusions, for example, will tend to rise to the "top" surface of the casting, which hence furnishes an anisotropic distribution of inclusions in the finished part that ...
niels nielsen's user avatar
1 vote

Designing a progressive die to make a blank on a thick steel sheet

The cutting blanks equation is, $$F=l*t*s$$ L=length mm t+thickness mm s =shear N/mm^2 We measure the perimeter of the blank and then add the circumference of the two holes. $\text{The straight ...
kamran's user avatar
  • 22.4k
1 vote

Standard time of basic actions in production line

Standard Times are established time measurements used in Industrial Engineering to estimate how long humans take to do something. These are built by breaking down an activity into its core components ...
Tiger Guy's user avatar
  • 6,901
1 vote
Accepted

Cleaning tape for automatic part cleaning during manufacturing

I have never seen a cleaning system like this; but it may exist. It may have some merits for having good control and very high purity cleaning; but probably overly complicated for just an adhesive ...
ericnutsch's user avatar
  • 8,151
1 vote
Accepted

From advanced prototype to low-volume production

I believe your primary goal when transitioning from single prototypes to small batch production should be to improve manufacturability, and ensure that your design is scalable. Examples of parts/...
Drew's user avatar
  • 1,971

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