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Transcript
00:02
Process plan to machine operation. One,
00:07
after completing this video, you'll be able to review a blueprint,
00:10
identify critical details of a blueprint and identify required tooling and fixing
00:17
for this video.
00:18
Let's go ahead and open up the spreadsheet process plan sample dash mill.
00:22
And let's go ahead and take a look
00:23
at the precision machining caliper dash inch drawing.
00:27
Specifically,
00:28
we want to take a look at the sheet that has the front portion of our caliber.
00:32
When we think of process planning, essentially,
00:34
what we're doing is we're thinking about the tool path required to machine our part
00:39
and the order of operations.
00:41
This is oftentimes done with a 3D model on the screen
00:45
and it's done conceptually during the process of creating tool paths.
00:49
However, in some industries, you will be required to create a process plan
00:53
to think about the tools required in the operations that
00:56
you want to perform before actually programming your part.
00:60
When we take a look at the caliper and specifically the detailed drawing,
01:04
a couple of things that we need to think about first is going to be,
01:07
which direction are we going to machine the caliper in first
01:11
taking a look at this part. It is a 2.5 axis part,
01:14
meaning we don't have any complex tapered faces or
01:18
curvature that is going to require three axis machining.
01:22
When we take a look at a part,
01:23
we need to think about how many directions we need to machine from.
01:27
And which side we're gonna machine. First
01:29
looking at this caliper, we need to think about critical dimensions.
01:33
And in this case specifically, the bore is going to be the most critical dimension.
01:38
So for me, I want to machine the inside or the backside of the caliber first,
01:43
as this dimension specifically for the bore is going to be the most critical.
01:47
I want to do this while I have the most amount of material available.
01:51
And then all the other features can be referenced based on that.
01:54
So this will allow me to locate all of the holes on the caliper
01:58
and machine the outside profile for the majority of the features.
02:02
Then when we flip the part over,
02:04
we'll need to use soft jaw or some sort of fixture to
02:07
hold the complex shape since it will no longer have parallel sides,
02:11
this is a common workflow, but every part is going to be different.
02:15
We could machine the outside of this part first and then we could
02:19
use a soft jaw or some sort of fixture to machine the inside.
02:23
When holding it in the second operation.
02:26
There's not necessarily a right or wrong way.
02:29
As long as the final part meets the client's specifications in this case,
02:33
tolerance and requirements,
02:34
then the job is complete.
02:38
We have a sample process plan that we want to take a look at.
02:41
This is going to be a rough outline of the operations that we're going to use for.
02:45
Set up one,
02:46
the tools that will be required and any notes that need to be applied,
02:51
note that the part number is included here as well as the material.
02:54
And there are some other options for things like changes,
02:58
approval drawn by and checked by.
03:01
Generally, these will be done with handwritten signatures,
03:04
but it could be a digital document as well.
03:07
There is no universal template for a process plan and the more experience you have,
03:12
the more likely this is done based on your experience on the fly.
03:16
But again,
03:16
some industries will require that you do fill out some
03:19
form of paperwork when you're planning out your parts.
03:23
When we take a look at the process plan,
03:24
some general things will be true across the board.
03:27
You want to know the setup that you're using
03:29
the tool that's required and the tool number,
03:33
these are going to be critical as tool numbers and their location inside of a
03:36
tool crib on your machine are going to be important to the programming process.
03:41
So if you have a default tool library or tool list with dedicated tool numbers,
03:46
that's gonna be something that you want to
03:47
down on a process plan so that you do match it when you make your digital tool library.
03:52
In this case, we're starting off with a 3D tool path called 3D adaptive clearing.
03:57
This will allow us to remove a lot of material away from the part effectively.
04:01
Then we can move on to machining the outside contour.
04:05
Then we'll do a two D pocket to rough the piston bore.
04:08
Once again, the piston bore is a critical feature.
04:11
So roughing it out,
04:12
leaving enough material that we can come back and
04:14
finish it to size is going to be important.
04:17
Then using a boring tool path, we're going to finish the piston bore,
04:21
then we'll move on to doing two D pockets which
04:24
will allow us to clear various faces at different heights.
04:27
As we look at the part, we have the mounting face between the two sides of the caliper.
04:32
We also have a small section where we have a step in around these mounting pads.
04:36
We have a section where the brake pad is going to be fitted
04:40
and these are all different areas that we want to focus on in terms of machining,
04:44
finishing and roughing strategies
04:46
as we move on. Then we have some two D contour tool paths
04:50
and these can be used for areas like the relief for the brake pads.
04:54
Then we'll do some spot drilling and we'll
04:57
do some final drilling and boring of holes.
04:60
Oftentimes you'll note that some holes on a design will not have a
05:03
dedicated drill bit inside of your tool library or tool checkout room.
05:08
In some cases,
05:09
you might opt to use the closest size drill bit and come back
05:12
and bore or two D contour to get to the right size.
05:15
In this case, our mounting hole is gonna be slightly bigger than the F drill.
05:20
And we want to come back and use a boring tool
05:22
path to make sure that the counter bore size is correct.
05:25
Then we have a two D chan for tool path with a deeper or a champ for
05:29
MLL that will allow us to go back and break all of the sharp edges.
05:33
Once again, this is a general process. There is no universal standard here.
05:38
But the overall idea with a process plan is
05:41
to think about how you're gonna hold your part,
05:43
think about which direction you're gonna machine from first and also
05:47
the tools and orders of operation that you want to follow.
05:51
In this case, let's go ahead and move into fusion 360.
05:54
So we can set up our digital tool library.
Video transcript
00:02
Process plan to machine operation. One,
00:07
after completing this video, you'll be able to review a blueprint,
00:10
identify critical details of a blueprint and identify required tooling and fixing
00:17
for this video.
00:18
Let's go ahead and open up the spreadsheet process plan sample dash mill.
00:22
And let's go ahead and take a look
00:23
at the precision machining caliper dash inch drawing.
00:27
Specifically,
00:28
we want to take a look at the sheet that has the front portion of our caliber.
00:32
When we think of process planning, essentially,
00:34
what we're doing is we're thinking about the tool path required to machine our part
00:39
and the order of operations.
00:41
This is oftentimes done with a 3D model on the screen
00:45
and it's done conceptually during the process of creating tool paths.
00:49
However, in some industries, you will be required to create a process plan
00:53
to think about the tools required in the operations that
00:56
you want to perform before actually programming your part.
00:60
When we take a look at the caliper and specifically the detailed drawing,
01:04
a couple of things that we need to think about first is going to be,
01:07
which direction are we going to machine the caliper in first
01:11
taking a look at this part. It is a 2.5 axis part,
01:14
meaning we don't have any complex tapered faces or
01:18
curvature that is going to require three axis machining.
01:22
When we take a look at a part,
01:23
we need to think about how many directions we need to machine from.
01:27
And which side we're gonna machine. First
01:29
looking at this caliper, we need to think about critical dimensions.
01:33
And in this case specifically, the bore is going to be the most critical dimension.
01:38
So for me, I want to machine the inside or the backside of the caliber first,
01:43
as this dimension specifically for the bore is going to be the most critical.
01:47
I want to do this while I have the most amount of material available.
01:51
And then all the other features can be referenced based on that.
01:54
So this will allow me to locate all of the holes on the caliper
01:58
and machine the outside profile for the majority of the features.
02:02
Then when we flip the part over,
02:04
we'll need to use soft jaw or some sort of fixture to
02:07
hold the complex shape since it will no longer have parallel sides,
02:11
this is a common workflow, but every part is going to be different.
02:15
We could machine the outside of this part first and then we could
02:19
use a soft jaw or some sort of fixture to machine the inside.
02:23
When holding it in the second operation.
02:26
There's not necessarily a right or wrong way.
02:29
As long as the final part meets the client's specifications in this case,
02:33
tolerance and requirements,
02:34
then the job is complete.
02:38
We have a sample process plan that we want to take a look at.
02:41
This is going to be a rough outline of the operations that we're going to use for.
02:45
Set up one,
02:46
the tools that will be required and any notes that need to be applied,
02:51
note that the part number is included here as well as the material.
02:54
And there are some other options for things like changes,
02:58
approval drawn by and checked by.
03:01
Generally, these will be done with handwritten signatures,
03:04
but it could be a digital document as well.
03:07
There is no universal template for a process plan and the more experience you have,
03:12
the more likely this is done based on your experience on the fly.
03:16
But again,
03:16
some industries will require that you do fill out some
03:19
form of paperwork when you're planning out your parts.
03:23
When we take a look at the process plan,
03:24
some general things will be true across the board.
03:27
You want to know the setup that you're using
03:29
the tool that's required and the tool number,
03:33
these are going to be critical as tool numbers and their location inside of a
03:36
tool crib on your machine are going to be important to the programming process.
03:41
So if you have a default tool library or tool list with dedicated tool numbers,
03:46
that's gonna be something that you want to
03:47
down on a process plan so that you do match it when you make your digital tool library.
03:52
In this case, we're starting off with a 3D tool path called 3D adaptive clearing.
03:57
This will allow us to remove a lot of material away from the part effectively.
04:01
Then we can move on to machining the outside contour.
04:05
Then we'll do a two D pocket to rough the piston bore.
04:08
Once again, the piston bore is a critical feature.
04:11
So roughing it out,
04:12
leaving enough material that we can come back and
04:14
finish it to size is going to be important.
04:17
Then using a boring tool path, we're going to finish the piston bore,
04:21
then we'll move on to doing two D pockets which
04:24
will allow us to clear various faces at different heights.
04:27
As we look at the part, we have the mounting face between the two sides of the caliper.
04:32
We also have a small section where we have a step in around these mounting pads.
04:36
We have a section where the brake pad is going to be fitted
04:40
and these are all different areas that we want to focus on in terms of machining,
04:44
finishing and roughing strategies
04:46
as we move on. Then we have some two D contour tool paths
04:50
and these can be used for areas like the relief for the brake pads.
04:54
Then we'll do some spot drilling and we'll
04:57
do some final drilling and boring of holes.
04:60
Oftentimes you'll note that some holes on a design will not have a
05:03
dedicated drill bit inside of your tool library or tool checkout room.
05:08
In some cases,
05:09
you might opt to use the closest size drill bit and come back
05:12
and bore or two D contour to get to the right size.
05:15
In this case, our mounting hole is gonna be slightly bigger than the F drill.
05:20
And we want to come back and use a boring tool
05:22
path to make sure that the counter bore size is correct.
05:25
Then we have a two D chan for tool path with a deeper or a champ for
05:29
MLL that will allow us to go back and break all of the sharp edges.
05:33
Once again, this is a general process. There is no universal standard here.
05:38
But the overall idea with a process plan is
05:41
to think about how you're gonna hold your part,
05:43
think about which direction you're gonna machine from first and also
05:47
the tools and orders of operation that you want to follow.
05:51
In this case, let's go ahead and move into fusion 360.
05:54
So we can set up our digital tool library.
After completing this video, you’ll be able to:
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