digplanet beta 1: Athena
Share digplanet:

Agriculture

Applied sciences

Arts

Belief

Business

Chronology

Culture

Education

Environment

Geography

Health

History

Humanities

Language

Law

Life

Mathematics

Nature

People

Politics

Science

Society

Technology

A parting line, or seam in moldmaking is the place where two or more parts of the mold meet.[1] Parting lines occur due to minute inherent gaps between two mating faces of halves of the die. The material filling into these gaps is generally called molding flash or simply flashing. Parting lines generally show up as a raised line around the product (witness mark) on commodity products such as toys.

Many applications (seals, tight running molded parts) that require precision for shape control, call for removal of flashes. Secondary operations are thus employed, in addition to high precision molding dies to remove these flashes. Many molders will repair or even replace the mold tooling so that the flash is reduced to an acceptable tolerance or eliminated altogether. Secondary operations to remove parting line flash include hand trimming, vibratory tumbling, media blasting and cryogenic deflashing.[2]

Flashes are known to improve sealing between mating faces in some instances (Fuel tank seals, hydraulic power steering gear, etc.), and thus flashes are permitted to some extent in special cases.

In engineering drawing, parting line is often abbrivated as PL. ASME's Y14.8 standard specifies a symbol for parting line.[3]

References[edit]



Original courtesy of Wikipedia: http://en.wikipedia.org/wiki/Parting_line — Please support Wikipedia.
This page uses Creative Commons Licensed content from Wikipedia. A portion of the proceeds from advertising on Digplanet goes to supporting Wikipedia.
255274 videos foundNext > 

Updated - Mold Making Casting Complex Parts w/ parting line)

When mass casting a part without a flat side, you must create a two-part mold. We create a two-part silicone rubber mold with a clean parting line and then c...

SOLIDWORKS - Mold Tools Part 2 - Split Line and Parting Line

Learn how to use mold tools for SOLIDWORKS from this 3 part series. This video describes how to create split lines and parting lines in preparation to creati...

SolidWorks 2013 Tutorial | Parting Line Draft

Want all of our free SolidWorks videos? Download our free iPad app at http://itunes.apple.com/us/app/video-training-courses-from/id418130423?mt=8 More detail...

Mold Making with Silicone: 2 piece mold with alginate parting line

Here's a novel mold process for those of you making 2 piece molds. This process delivers great, tight seams. Platsil 7325 is a great silicone to use for this...

How to create a parting line

See how to create a parting line for plastic injection molds using the Solid Edge Mold Tooling application.

Updated - Simple Silicone Rubber Molds (no parting line)

Ideal for smaller projects (less than 12" x 12"), this is the easiest process for creating parts, patterns, tools, & molds. We demonstrate creating a silicon...

E7 SolidWorks finding a complex parting line

Exercise 7 - Explores how to create a silhouette parting line off a complex (non-planar) part.

How to mold a pattern with one parting line

SolidWorks Tutorial -18(Parting Line Command)

FOUNDRY WORK molding irregular parting line Part 6 video A tubalcain

Tubalcain shows how to make sand mold using a pattern with an irregular parting line. This is part A of a two part video. irregular parting part 6 video A.

255274 videos foundNext > 

317 news items

Design ENGINEERING

Design ENGINEERING
Sun, 24 Aug 2014 22:31:12 -0700

When you are developing a 3D CAD model to be molded, you may not spend much time thinking about where its parting line will be, but it's worth noting as the location can affect your part in several ways. On some parts, the location for the parting line ...

NOLA.com

NOLA.com
Wed, 03 Dec 2014 04:50:48 -0800

That shift, along with Malvolio's parting line forecasting revenge, encompasses the darker bite that underlies the humor of the entire play. Despite Claverie's scene-stealing performance, Allegra doesn't allow the subplot of Malvolio's gulling by Sir ...

Batman-News

Batman-News
Wed, 26 Nov 2014 18:03:45 -0800

Once the fighting is over, Batman tries to get Hush back verbally by saying he is a little boy crying, but for me there was a previous line that I thought should have cut Hush more deeply, and would have been a better parting line for Batman to have ...

Foundry-Planet.com

Foundry-Planet.com
Wed, 03 Dec 2014 15:03:45 -0800

Vertical parting of moulds enables placement of the gating system, as well as venting of the mould cavities, in the parting line. Other systems or sources of disturbance such as venting and drilling devices are not necessary. Production normally ...
 
Digital Journal
Mon, 01 Dec 2014 13:56:15 -0800

SelfLube, the leading U.S. manufacturer for precision mold and die components announces a major expansion in manufacturing operations in Coopersville, MI. In 2015 the Company will be adding machines, employees and manufacturing space.
 
Today's Zaman
Wed, 17 Sep 2014 09:18:45 -0700

A parting line was running through the Muslim majority. As for the goal of secular Young Turk revolutionaries, it consisted of destroying the ancient regime, and those who were not fitting in the definition of “new” were doomed to destruction, exactly ...

Wall Street Journal (blog)

Wall Street Journal (blog)
Tue, 11 Nov 2014 14:52:30 -0800

Will you clear up, in the next season, Tom's parting line “I was locked up for 4 months and never once told her about us.” That is definitely a story we are going to explore. Will we see more of Paul Reubens's character? I love Paul. Paul loves the show.

Consequence of Sound

Consequence of Sound
Thu, 11 Sep 2014 21:01:01 -0700

And how you respond to Goodwin's parting line depends on whether or not you see him as the hero. It's easy to accept him as such: he's young, handsome, and presented as a morally sound individual with big dreams. I, however, do not see Dick Goodwin as ...
Loading

Oops, we seem to be having trouble contacting Twitter

Support Wikipedia

A portion of the proceeds from advertising on Digplanet goes to supporting Wikipedia. Please add your support for Wikipedia!

Searchlight Group

Digplanet also receives support from Searchlight Group. Visit Searchlight