Welcome to WAM Metals!
WAM Metals, established in 1984, has progressed to a world-class copper, brass, aluminium, steel and plastic component manufacturer. WAM Metals supplies all sectors of the economy and prides itself in manufacturing high-quality components for their customers. This is ensured using their ISO 9001 Quality Management System and a dedicated and well trained team of staff to ensure that all customers’ requirements are achieved all of the time.
WAM Metals' manufacturing facility includes a saw cutting area, forge plant, finishing and plating plant, CNC machine shop, design department, state of the art tool-room and a comprehensive plastic injection moulding facility. WAM Metals has the ability to provide their customers with full design and 3D printed models prior to manufacture of tooling and product, this ensures that customer requirements are met first time. WAM Metals has a full fleet of delivery vehicles and makes use of couriers for long distance deliveries, ensuring on time delivery.
Please see examples of the products we manufacture for our customers in our Product catalogues section. All our customers' tooling is maintained and stored by us and used exclusively for our customers - we guarantee the same for all our customers. All enquiries for our customer's products are sent directly to our customer.
WAM Metals Technical and Sales Team are on hand to assist with all enquiries to ensure customer satisfaction.
Tel: 011 748 7420/3
Fax: 011 420 2040
ISO 9001 Certified
Facilities and services
Extrusion and reeling
Forging, saws and clipping
Plastic injection moulding
Quality and testing
Forging vs Casting
Forging vs Casting
Wam Metals (Pty) Ltd is a non-ferrous forging company which specialises in the art of forging. WAM is over 30 years old, over 30 years of perfecting the forging manufacturing process, over 30 years of experience.
What is forging?
Castings are manufactured by pouring molten metal into a sand mould, forging is an entirely different process which involves forging a hot billet to shape by force.
The forging process:
- A solid extruded section is taken in long lengths and cut into the required length billet.
- This cut billet is heated up to 650 degrees C.
- This heated billet is then placed into a forging die positioned in a forging press.
- The press is then activated and the forced impact of the press forms the forged product.
Note: It is important to note the following:
- Castings are susceptible to blow holes and or porosity.
- Forgings are 100% clear of any blow holes or porosity.
Main benefits of Forging
Forgings are much stronger:
Castings are poured as a liquid into or through moulds whereas forgings are hot-worked under pressure which yields higher strength and reliability. The Forging process causes recrystallization and refinement of the grain structure of the material being forged which leads to a homogenised grain structure; the homogenised grain structure makes the metal much stronger and less resistant to impact, shear and wear damage.
Forgings are more refined:
Castings do not have the grain flow or directional strength of forgings which allows for the possibility of metallurgical defects such as segregation and dendritic structures. Castings are susceptible to critical flaws like blowholes, porosity and shrinkage. Forging creates metal flow with compact grain structures and refines these conditions into a strong and very reliable product.
Forgings are more reliable:
Castings require very strict foundry practice and control. Defects are only detected once the metal has cooled, removed from the mould and cleaned and in most cases are only detected after machining.
Forgings with refined grain structure imparts high strength, ductility and resistance properties.
Forgings respond better to heat treatment:
Castings have alloy segregation and non-uniform cooling; this leads to inconsistent heat absorption during heat-treatment and results in warping and bending. Forgings are more uniform and respond predictably to heat-treatment which ensures dimensional stability.
Forgings are more cost effective with flexible production output:
Due to possible Casting flaws during the Casting process stricter process controls are needed which results in longer lead times while Forgings production runs are more adaptable and have shorter lead times.
Forgings are more economical to machine:
Castings are produced with excess allowances to reduce defects whereas forgings are produced with tighter tolerances to minimise material removal, leading to lower machining costs or eliminate the need for machining completely.