the wax (Therefore the name ‘Lost Wax Process’). …leakproofcast.com/pdf/ultra.pdfthe wax...
2
the wax (Therefore the name ‘Lost Wax Process’). Thus, a Mould, also called as a Cast is created which can then be filled with the molten metal. Since the Cast is fashioned around a one-piece prototype, (which does not have to be pulled out from the Cast as in a traditional sand casting process), very intricate parts and undercuts can be achieved. Prior to the pouring of the molten metal, the Mould is pre-heated to about 1000 0 C (1832 0 F) to remove any residues of wax. The pour in the pre-heated mould also ensures reaching out to all intricate corners and twist of the Cast. Pouring can be done using gravity, pressure or vacuum conditions. Permeability of the Cast attracts greater attention when the pressure is used to allow the air to escape as the pour is done. Tolerances of 0.5 % of length are routinely possible. Castings can weigh from a few grams to 65 kg (0.1 lb to 140 lb). Normal minimum wall thicknesses are about 1 mm to about 0.5 mm (0.040-0.020 in) for alloys that can be cast easily. Materials Engaged in Investment Casting : Investment Casting is utilised in a wide range of complex commercial applications. The material required for the process needs to withstand higher temperatures for greater efficiency in order to meet the modern design trends of the industry. Therefore the material used in the process, comprises of highly heat resistant, Nickel and Cobalt - based Super Alloys, Tool Steel, Stainless Steel and Aluminium Supplemented with Copper and Titanium Alloys. Our Pledge With a Motto to provide the best of services to our indispensable Customers, we have more than one promise to make: a) Superior engineering expertise b) Design flexibility c) Internationally acclaimed quality assurance d) Absolute precision e) Technological excellence f) Professional correspondence g) Deadline oriented delivery pattern h) And last but not the least, an everlasting Customer relation INVESTMENT CASTING History & Modernisation : Investment Casting, also widely known as the ‘Lost Wax Process’, is supposedly the most ancient mode of manufacturing metal parts. As old as about 5000 years ago, in the time of the Pharaohs, it was used by the Egyptians to make gold jewellery (Therefore the name ‘Investment’). About 100 years ago, the use of the Lost Wax process was discovered and applied for Dental inlays and later also for Surgical Implants. The process, as versatile as this, promises casting of intricate shapes with high accuracy. And therefore, is used to manufacture parts ranging from turbocharger wheels to golf club heads, from electronic boxes to modish replacement implants. Additionally, metals which are hard to machine or fabricate otherwise, stage as good contenders for this process. The process capable of making parts that cannot be produced by normal manufacturing techniques is therefore utilised to manufacture turbine blades that have complex shapes, or airplane parts that have to withstand high temperatures. Amidst all this, the attention however, was turned to this process when there felt a need to manufacture accurately shaped blades. It was the solution of the four key problems that entitled the process to take all the credit: 1. Castings had to be reproducible within close dimensional limits 2. Castings had to be produced in high melting point alloys 3. There had to be high standards of metallurgical quality 4. Costs had to be lower than that of alternative techniques The Process : The Mould is prepared by making a pattern using wax, as it needs to be later melted away. The wax pattern is then dipped in refractory slurry that coats the wax pattern and forms a camouflage, followed by a drying process. The entire process of dipping in the slurry and drying is repeated until a full-bodied thickness is accomplished to get strength to withstand the thrust of the molten metal. After this, the entire prototype is placed in a furnace to melt away Together we achieve The EDR Group, known in the industry as a Power-House of technical expertise, professional excellence and undeniable trust, has proven its worth with the growing time. Our large base of corporate and commercial Costumer, shares a large part of these values by having bestowed immense trust in us for years. The EDR Group is a professionally managed family owned business conglomerate. Having rooted its founder stone in the year 1967, the group has, since then, traversed many a milestone in the engineering industry… including ‘Leak-Proof Engineering (I) Private Limited’ Leak Proof, being a feather in the cap of the group, has always demonstrated stead fast growth in the industry of manufacturing engineered seals. Leak Proof means a lot to the EDR Group as a technologically sound and innovative company. The EDR Group, with all its efficiencies, is a mark of very high degree of business ethics, professional integrity and technological excellence. A superior information and research analysis system and more than thirteen branches across the nation have enabled fair and environment friendly business deals to acquire a place in its portfolio. With a brilliant team of highly intellectual professionals, the EDR Group is now set to mark a new milestone - Leak-ProofiCast ( I ) Pvt. Ltd. Investment Casting being the forte of Leak-ProofiCast, It focuses mainly on manufactur- ing high quality, intricate Casts by the process of Investment Casting. With Leak-ProofiCast, the EDR group is all set to storm the world of Investment Casting across the nation!
Transcript of the wax (Therefore the name ‘Lost Wax Process’). …leakproofcast.com/pdf/ultra.pdfthe wax...
the wax (Therefore the name ‘Lost Wax Process’). Thus, a Mould, also called as a Cast is created which can then be filled with the molten metal. Since the Cast is fashioned around a one-piece prototype, (which does not have to be pulled out from the Cast as in a traditional sand casting process), very intricate parts and undercuts can be achieved.
Prior to the pouring of the molten metal, the Mould is pre-heated to about 10000C (18320F) to remove any residues of wax. The pour in the pre-heated mould also ensures reaching out to all intricate corners and twist of the Cast. Pouring can be done using gravity, pressure or vacuum conditions. Permeability of the Cast attracts greater attention when the pressure is used to allow the air to escape as the pour is done.
Tolerances of 0.5 % of length are routinely possible. Castings can weigh from a few grams to 65 kg (0.1 lb to 140 lb). Normal minimum wall thicknesses are about 1 mm to about 0.5 mm (0.040-0.020 in) for alloys that can be cast easily.
Materials Engaged in Investment Casting :Investment Casting is utilised in a wide range of complex commercial applications. The material required for the process needs to withstand higher temperatures for greater efficiency in order to meet the modern design trends of the industry. Therefore the material used in the process, comprises of highly heat resistant, Nickel and Cobalt - based Super Alloys, Tool Steel, Stainless Steel and Aluminium Supplemented with Copper and Titanium Alloys.
Our PledgeWith a Motto to provide the best of services to our indispensable Customers, we have more than one promise to make:
a) Superior engineering expertiseb) Design flexibilityc) Internationally acclaimed quality assuranced) Absolute precisione) Technological excellencef) Professional correspondenceg) Deadline oriented delivery patternh) And last but not the least, an everlasting Customer relation
INVESTMENT CASTING
History & Modernisation :Investment Casting, also widely known as the ‘Lost Wax Process’, is supposedly the most ancient mode of manufacturing metal parts. As old as about 5000 years ago, in the time of the Pharaohs, it was used by the Egyptians to make gold jewellery (Therefore the name ‘Investment’).
About 100 years ago, the use of the Lost Wax process was discovered and applied for Dental inlays and later also for Surgical Implants. The process, as versatile as this, promises casting of intricate shapes with high accuracy. And therefore, is used to manufacture parts ranging from turbocharger wheels to golf club heads,
from electronic boxes to modish replacement implants. Additionally, metals which are hard to machine or fabricate otherwise, stage as good contenders for this process. The process capable of making parts that cannot be produced by normal manufacturing techniques is therefore utilised to manufacture turbine blades that have complex shapes, or airplane parts that have to withstand high temperatures.
Amidst all this, the attention however, was turned to this process when there felt a need to manufacture accurately shaped blades. It was the solution of the four key problems that entitled the process to take all the credit:
1. Castings had to be reproducible within close dimensional limits2. Castings had to be produced in high melting point alloys3. There had to be high standards of metallurgical quality4. Costs had to be lower than that of alternative techniques
The Process :The Mould is prepared by making a pattern using wax, as it needs to be later melted away. The wax pattern is then dipped in refractory slurry that coats the wax pattern and forms a camouflage, followed by a drying process. The entire process of dipping in the slurry and drying is repeated until a full-bodied thickness is accomplished to get strength to withstand the thrust of the molten metal. After this, the entire prototype is placed in a furnace to melt away
Together we achieve
The EDR Group, known in the industry as a Power-House of technical expertise, professional excellence and undeniable trust, has proven its worth with the growing time.
Our large base of corporate and commercial Costumer, shares a large part of these values by having bestowed immense trust in us for years.
The EDR Group is a professionally managed family owned business conglomerate. Having rooted its founder stone in the year 1967, the group has, since then, traversed many a milestone in the engineering industry… including ‘Leak-Proof Engineering (I) Private Limited’
Leak Proof, being a feather in the cap of the group, has always demonstrated stead fast growth in the industry of manufacturing engineered seals. Leak Proof means a lot to the EDR Group as a technologically sound and innovative company.
The EDR Group, with all its efficiencies, is a mark of very high degree of business ethics, professional integrity and technological excellence. A superior information and research analysis system and more than thirteen branches across the nation have enabled fair and environment friendly business deals to acquire a place in its portfolio.
With a brilliant team of highly intellectual professionals, the EDR Group is now set to mark a new milestone - Leak-ProofiCast (I) Pvt. Ltd.
Investment Casting being the forte of Leak-ProofiCast, It focuses mainly on manufactur-ing high quality, intricate Casts by the process of Investment Casting.
With Leak-ProofiCast, the EDR group is all set to storm the world of Investment Casting across the nation!
Leak-Proof Cast (I) Pvt. Ltd.1-D, EDR INDUSTRIAL ESTATE, PIROJPURA, NEAR CHHAPI, TALUKA VADGAM, DIST. BANASKANTHA, NORTH GUJARAT 385 210, INDIA. FAX: 91- 02739- 270097, PHONE: 91- 02739- 270099, 270599E-mail: [email protected] Website: www.leakproofcast.com
CORP. OFFICE: F - 1, LAXMI INDUSTRIAL ESTATE, NEW LINK ROAD, ANDHERI (WEST) MUMBAI 400 053. INDIA FAX: 022- 2636 8429, PHONE: 022-2636 1737, 2636 1133E-mail: [email protected]
EDR Group
SINCE 1967
We cater to the following industries:
Automobile
Pumps
Valves
Textile Machinery
Mechanical Seals
General Engineering
Human Implants
and many more....
Nominal Dimension Overall Dimensions (mm) (mm)
Over Up to Up to 6 6 to 10 10 to 18 18 to 30 30 to 80 80 to 180 180 to 300 300 to 500
0 6 ±0.10 ±0.12 ±0.15 ±0.20 ±0.25 ±0.25 ±0.30 ±0.35
6 10 ±0.12 ±0.15 ±0.25 ±0.25 ±0.30 ±0.35 ±0.45
10 18 ±0.20 ±0.30 ±0.35 ±0.35 ±0.40 ±0.55
18 30 ±0.30 ±0.40 ±0.45 ±0.50 ±0.65
30 80 ±0.45 ±0.55 ±0.60 ±0.75
80 180 ±0.60 ±0.70 ±0.90
180 300 ±1.00 ±1.15
300 500 ±2.00
Tolerance on Angle : ±10
Surface Roughness: As Cast : 3.0 to 6.0 Ra µ.
Machining Allowance: 0.5 mm to 2 mm wherever machining fitment is expected.
More closer dimensional tolerances also can be achived, as per International standards, with additional operations.
Configurations like, small hole, Blind hole, Slot, Groove, Serration, Knurling, Under-cuts can be achived as cast, depending upon overall geometry, Complexity and size of the components.
Let’s partner excellence… your imagination, our creation
Let’s partner excellence… your imagination, our creation
AN ISO 9001 : 2008 COMPANY
