Design & illustration

Sand Casting - PART THREE with Philip White and Jenny Dunseath

pwhite — Wed, 09 Nov 2011 10:00:30 +0000

Part three of the Sand Casting Process with Philip White and Jenny Dunseath in the foundry at Camberwell college of Art London. Video by Chris Follows part of the Process Arts Project.

NOTE: Because the sand is used in a damp condition there is minimal sand dust,and this occurs at the mould face immediately arround the hot metal casting ,clearly visible when the casting is knocked out. At this stage a small watering can or spray will help to stableize this dry material.A standard dust mask could be worn.It is always worth taking sensible precautions with all processes.With sand casting on the scale immagined here keep a water spray handy and use it when cleanig away any dry material.

Text Information supplied by Jenny Dunseath:

Pattern Making:

The Pattern is a full size model of the part that makes an impression in the sand mold, with dimensional allocation for shrinkage and finishing.
If the casting is hollow, additional patterns called cores are used to create these cavities in the finished product.
Patterns are usually made of wood, plastic, metal, or plaster; however, other materials or combinations of materials are used if there are additional specific properties required of the pattern.
Every Pattern must have a draft angle of approximately 2° - 3° to all walls parallel to the parting direction to facilitate removing the part from the mold.
Paint the surface of the Pattern with Varnish or Shellac to make it water tight and to ensure that the sand does not stick.
For a Flat back pattern- put screw holes in the back to aid its removal from the sand.

Molding:

Molding is the multi-step process in which molds are created.
In horizontal casting, the mold is contained in a two piece frame, called a Flask. The upper portion of the flask is called a Cope and the lower portion is a Drag.
First, molding sand is packed into a Flask around the pattern. After the pattern is removed, Gating and Runner arrangements are positioned in the drag half of the mold cavity and the Sprue is placed in the cope portion.
Gating systems are necessary for the molten metal to flow into the mold cavity.
Cores are also placed in the drag portion of the mold if they are needed. To finish the mold, the Cope (top) section is placed on the Drag (bottom) section, and the mold is closed and clamped together.

Sand:
Two main routes are used for bonding the sand moulds:
The "green sand" consists of mixtures of sand, clay (Bentonite) and moisture. If the sand can be squeezed together and hold its shape, it is suitable for use.
The "dry sand" consists of sand and synthetic binders cured thermally or chemically.
The sand cores used for forming the inside shape of hollow parts of the casting are made using dry sand components.
Between uses, the sand is rejuvenated by adding water and mulling (mixing and smashing). If you do not let the sand dry out all the way, you do not have to mull, just add water. Sand grit is determined just like sandpaper. 150 is very fine and 50 grit is coarse. Fine sand will give good detail, coarse sand will give a pebbly or rough texture.

MaterialsMelting temperature
Aluminum alloys1220 °F (660 °C)
Brass alloys1980 °F (1082 °C)
Cast iron1990-2300 °F (1088-1260 °C)
Cast steel2500 °F (1371 °C)

Websites:
www.metal-technologies.com/SandCasting.a spx
www.airnyc.org/list/78478/1/sand-casting -step-by-step.html
www.foundry101.com
www.custompartnet.com/wu/SandCasting

Books:
The Complete Handbook of Sand Casting - by CW Ammen
Metal Casting: A Sand Casting Manual for the ... - by Steve Chastain

LINKS TO THE OTHER VIDEOS RELATED TO THIS POST: Sand Casting at Camberwell with Philip White and Jenny Dunseath :

INTRODUCTION

PART ONE SAND CASTING

PART TWO SAND CASTING

PART THREE SAND CASTING

Look At The (E)state We're In (LATEWI) Film

pnellis — Mon, 29 Feb 2016 22:59:37 +0000

A short film documenting Look At The Estate We're In (LATEWI). A 2015 Curriculum Development Fund and CCW Grad School supported project providing work experience opportunities to UAL students, where students created, curated, and executed a two day a symposia and live art event in relation to art on council estates and in the community.

Gravity Sketch user testing with Chelsea MAGDC students

cfollows — Mon, 30 Nov 2015 17:11:32 +0000

Following on from our first introduction to the Gravity Sketch team by the Tate at the Tate digital show & tell event, the Gravity team have offered to come to UAL and work with our staff and students on testing the new app in development.

This workshop came at a good time for CCW digital LTE as we are starting to explore new 3D technologies through 3D printing and virtual reality Oculus Rift. Also really interesting to see the Gravity Skech app is now linked up to 3D printing service Shapeways, the quality of the 3D prints look brilliant.

The first session took place Nov 2015 at Chelsea:

The new cohort of MAGDC students were let loose on Gravity Sketch software to assess usability and also to creatively challenge themselves to think about the uses and expression of 3D virtual space and it’s relationship to new 3D printing opportunities.

Next week the students visit the company’s studio to try out the sketching environment with the virtual reality headset, Oculus Rift.

First quick experiments revealed a leaning towards fragmented environments with a sense of space extending both sides of the screen.

See more here on the MAGDC blog.

See also a fantastic blog post from 'A new design experience' ISD student Gonzalo Caravia Garcia on a follow up workshop with Gravity Sketch team exploring Virtual Reality through Oculus Rift

Some Images from the afternoon:

Attachment	Size
img_1229-hd.mp4	4.58 MB
a_new_design_experience._20151216.jpg	1.53 MB

How We Work - A conference funded by SEE at CSM

msalamon — Tue, 31 Mar 2015 11:58:44 +0000

This is a record of the How We Work conference held at CSM on June 14th 2014. The conference was funded by SEE.

The aim of the conference was to forge links between graduating students and key employers in the creative industries.

Speakers representing key areas of potential employment for BA Graphics students delivered presentations relating to recruiting creative practitioners combined with presentations by students relating to Problem Solving in projects.

During breaks for coffee and lunch students and speakers participated in a Salon Session. This was a form of mini congress or informal networking event designed to encourage “active learning” through discussion amongst invited design professionals and current students.

The salons of the enlightenment operated under the guidance of Salonnieres, whose role was to encourage ideas and debate. In Salon Sessions CSM staff took on this role, introducing groups of students to relevant speakers. The student delegates were encouraged to show work in progress and recently completed work to industry professionals and benefit from informal feedback with emphasis on informal presentation. The intention was to receive honest, direct and open feedback from experienced practitioners, in an informal setting accompanied by refreshments.

As can be seen in the film this format proved to be successful with many of the conversations resulting in useful exchanges of ideas focussed on themes relevant to the field of Design as well as exchanges of details. During the conference presentations one of the invited companies, Unit 9, offered 6 CSM students internships that they took up over the summer break.

Graphics Process Blog

cfollows — Wed, 05 Feb 2014 19:01:11 +0000

Thumbnail

UAL Debates in Enterprise and Employability

croth — Thu, 16 Jan 2014 16:01:33 +0000

Thumbnail

Free Icon Images

cfollows — Thu, 14 Nov 2013 22:33:02 +0000

Thumbnail

Full page screen grab with Paparazzi

cfollows — Wed, 13 Nov 2013 23:08:11 +0000

Thumbnail

Why Openness in Education Matters:

jaygo bloom — Thu, 25 Jul 2013 14:04:49 +0000

Thumbnail

What's The Point Of Art School? The Highlights

cfollows — Sun, 02 Jun 2013 16:13:45 +0000

At a moment when art and design education is being potentially threatened at school level through changes to the curriculum and exam structures, and at university level through new funding regimes, the need to deliver clear answers to this question is greater than ever.

Art and design education is continually reinventing itself and this series of events is an opportunity to take stock of where we are and where we might be heading. The intent is not to arrive at a single answer, but to develop responses that celebrate and articulate the key role that art and design education plays in the cultural, social and economic life of the world.

Watch Johnny Vegas, Suzanne Moore, Jeremy Till and many others in What’s The Point Of Art School? Here

UAL Debates in Enterprise and Sustainability

ajohnston — Mon, 29 Apr 2013 13:23:56 +0000

Thumbnail

The Guerrilla CG Project

cfollows — Tue, 02 Apr 2013 11:47:13 +0000

The Guerrilla CG Project a non profit organisation dedicated to teaching the fundementals of computer graphics. It grows from the contributions of artists and technicians from around the world. For lots more tutorials and information/links about learning computer graphics and higher quality videos you can visit it here... guerrillacg.org

External Links www.guerrillacg.org

This video is a high quality training video from The Guerrilla CG Project ( guerrillacg.org ) a non for profit organisation dedicated to teaching the fundamentals of computer graphics.

Primitives are objects like spheres, cubes and cylinders. These objects are a handy starting point for any model. Take for example this lizard which we make using primitives.

Author: Andrew Silke
guerrillacg.org/index.php/presenters/andrew-silke

For more information about Computer Graphics and higher quality videos visit The Guerrilla CG Project.

Just because you can, doesn’t mean you should

kpryce — Wed, 27 Feb 2013 14:26:14 +0000

Thumbnail

My Digital Life presentation - Jessica Barr

BAR11320385 — Sun, 09 Sep 2012 20:19:08 +0000

My pecha kucha presentation for the Designs On E-Learning conference September 2012 in which I discuss my experiences of studying in an Online environment for my MA in DIgital Art at UAL Camberwell, while living abroad in Cambodia.

How can we use peer-reviewed blogging as formative assessment to engage students in writing for design

mparrinder — Thu, 31 May 2012 12:17:31 +0000