Protolabs Insights: Tipps zum Senken der Spritzguss-Kosten

Jeder will bei den hergestellten Teilen Geld sparen. In diesem Video werden Möglichkeiten aufgezeigt, wie die Kosten beim Spritzguss gesenkt werden können, sei es durch das Aussparen von unnötigen Merkmalen oder das Einbringen von Hinterschnitten.

00:02[Music]

00:09hello and welcome to the master class

00:11today we're taking a quick-fire look at

00:14a few ways you can cut costs around

00:16injection molding some of these are

00:19fairly obvious some of them are a little

00:21trickier but they all work let's kick

00:24off with a fairly simple idea that is

00:26cutting out unnecessary features we're

00:29talking about things like company logos

00:31part numbers and nice textured surfaces

00:34these are all nice things to include but

00:37if your concern is cost then these are

00:39easy little luxuries you can shave off

00:42and if you do need to include a logo or

00:45lettering make sure you go for a mil

00:47friendly font something plain like Arial

00:50is perfect similar to this if that nice

00:53finish is important for the part check

00:55to see if all of it needs to be treated

00:57the same way there's not much point in

01:00polishing up both sides of a part if

01:02only one is actually visible in the

01:04finished product so next up we have

01:07undercuts they force you to add extra

01:10things to the mold bumping up tooling

01:12costs as well as needing longer cycle

01:14times again all extra costs you want to

01:17avoid basically if you can get rid of an

01:20undercut do it of course that isn't

01:23always possible lots of side actions

01:26rely on undercuts to actually work in

01:28this case looks alternatives like

01:31sliding shut offs and pass-through cause

01:33or try changing the passing line and

01:36draft angles to provide an easier mold

01:38build from something to avoid we move on

01:42to something to try and include wherever

01:44possible a core cavity now this is

01:47something you're usually going to run

01:49into if you need electronic housing or a

01:51similar shaped box shaped parts there

01:55are two ways to go about making this

01:57first you could sink the wool and

01:59cavities deep into the mold base

02:02requiring a long thing tools to machine

02:04ribs into the mold or alternatively you

02:07could machine the aluminium material

02:09down around the core and mold the part

02:12around it that second option is a cork

02:15and it's a much more cost-effective

02:17method to build this kind of part better

02:20yet this makes it easier to provide

02:22smooth service finishes and can

02:24eliminate the need for super steep draft

02:27angles another little design tip that

02:29you can save your cash is to create self

02:32mating parts now before you start making

02:34the joke this means that the parts can

02:36just snap together with themselves the

02:39main use for this comes when you're

02:41building a case or some device that

02:43needs two halves that lock together

02:45rather than having different designs for

02:48each bit redesign the snaps so that they

02:51fit in either direction that way rather

02:54than having one production run for part

02:56a and another for Part B you just have

02:59twice as many of your self mating parts

03:01and you cut your upfront expenses in

03:04half sticking with those economies of

03:07sale let's have a quick run-through on

03:09multi cavity molding and family molds

03:12the idea behind multi County molding is

03:15pretty simple

03:16take a simple part and design your mold

03:18to produce multiple copies at the same

03:21time this can be a little bit expensive

03:23when it comes to tolling but the savings

03:26from getting all those parts done at

03:28once should more than balance it out

03:31family mods allow a similar idea but

03:34rather than producing copies of one

03:36single parts they use just one mole to

03:39produce a whole range of different parts

03:42ideally ones that fit together these

03:45don't really increase the tooling costs

03:47you'd be tooling all those different

03:49molds anyway but it does need all the

03:53pieces to be made at the same time with

03:55the same material and roughly the same

03:57size so that they have similar

03:59processing times another good way to

04:02save money on your moles is through

04:05modifying existing ones rather than

04:07creating them from scratch every time

04:10you change your design this is a little

04:13bit more complicated than it looks at

04:15first glance because while removing

04:17metal from a mold is easy adding it back

04:20is a little tricky with a bit of careful

04:23planning though you can use the same

04:25mold over and over again the best

04:28way to do this is to start off with the

04:30smallest most basic part design molding

04:33as many pieces as needed then we machine

04:36the mold to include additional features

04:39it's not an exact science but given the

04:42right part the savings can really add up

04:44and my final tip for you is to get to

04:47the design for manufacturability or DFM

04:50analysis this is basically a checkup

04:52where the experts take a look over your

04:54design and flag up any potential

04:56problems like impossible geometries or

04:59UNMISS chainable features and offer up

05:02ways that the production process could

05:04be made a little smoother this is a

05:06great way to save money because it's

05:09usually free well that's it for this

05:12week we hope you found it interesting

05:13and we'll see you next time

05:17[Music]

05:22you