Populate a process plan form

00:02

populate a process plan form.

00:06

After completing this video, you'll be able to

00:08

classify required machining operations and infer

00:11

information from a process plan form

00:16

to get started. We want to open up the supplied spreadsheet, process plant sample.

00:21

Process planning is the general term associated with planning out

00:25

tool paths and tools required to machine a specific part.

00:28

While there is no universal standard for process planning,

00:32

there are some commonalities across the board.

00:35

Some shops or industries will require you to fill out a process

00:39

plan before programming apart while others

00:41

won't require this type of documentation.

00:43

But let's take a look at this process plan, sample and identify a few key areas.

00:48

First,

00:49

at the very top will note that we have the material listed as aluminum 60 61 dash T six.

00:55

This bit of information was omitted from the detailed drawing,

00:58

but with a process plan and part number,

01:01

we can get all the information needed to machine apart.

01:04

Next you'll note that we have our part number part name as well as

01:08

any information about the person who drew checked or approved the final design.

01:14

This chain of information is important, especially in a manufacturing setting,

01:19

making sure that each part is both approved for design and manufacture.

01:26

In the bottom section of this form,

01:28

you'll note that we have numbers associated with the operations,

01:31

a description of the operation,

01:33

the setup or coordinate system that will be referenced, the tool being used.

01:37

A tool number and any notes that go along with this

01:40

as you think about machining apart. Oftentimes there are commonalities.

01:44

Despite the geometry that you're machining.

01:47

In most cases, you'll likely begin the process by facing the top of the raw stock,

01:53

then you'll move on to roughing and finishing the outside or the inside of the part,

01:57

depending on its specific geometry.

01:60

A lot of times you'll find that you have holes which

02:02

will require you to spot drilled or pre drill the holes.

02:06

Then you might create a smaller drilling operation,

02:09

a final drilling operation and then tap those holes.

02:12

Because the workflow is so similar between machining multiple types of parts.

02:16

You'll find that this process of facing roughing,

02:20

finishing and drilling and then followed up by de boring at

02:23

the very end is going to be common across the board.

02:27

Taking a look at this,

02:28

we can see that we're starting the operation by facing the top of stock.

02:32

This is a three quarter flat end mill and it's set up as tool number four.

02:36

Next we rough and finish the outside of the part.

02:39

This is done with an external contour for both roughing and finishing that shape.

02:45

Next we have an operation called finish step based on the geometry of our part.

02:49

This is going to be the intermediate pocket that's open in the middle of our part.

02:54

This is done with a half inch flat end mill,

02:56

tool number five and it's done using an adaptive clearing down to that step.

03:01

Keep in mind that adaptive clearing is typically done

03:05

as a roughing operation and this is noted as a

03:08

finished step here just because the process plan has laid

03:11

out the operations and tools doesn't mean that we can't

03:15

make changes or alterations along the way at the

03:18

very end of the process will be creating a set

03:20

up sheet which will be the documentation that would go

03:23

from the cam environment down to the machine operator.

03:27

This will list all of the tools tool paths in

03:29

any specific settings such as where the coordinate system is located

03:33

next. You can see that we've got spot drilling the holes,

03:37

finished drilling the holes and then tapping all of the holes.

03:40

This does not contain a deeper or a chance for operation at the very end.

03:46

However, the detailed drawing did note that we need to break the edges.

03:50

So again,

03:51

the process plan is going to be something that's done

03:53

at the beginning after reviewing apart and a drawing just

03:57

to identify some of the general operations tools and workflow

04:01

that's going to be carried out when machining the part,

04:04

it's always important to note that when you get into

04:06

the camp environment and you begin programming your tool paths.

04:09

Keeping in mind that making changes along the way is going to be important to

04:13

ensure not only the accuracy of the

04:15

part but also the efficiency of machining operations

04:19

at this point,

04:20

let's make sure that we do save any changes that

04:22

might have been made before moving on to the next step