Place of Origin : Taiyuan,China
Post Date : 25-10-2021
Expiry Date : 17-02-2022

Sand Casting Is The Most Commonly Applied Method For Casting The Metal Part. It Suits Most Of The Raw Materials, Ferroalloy, And Non-ferroalloy Both Can Be Used To Do The Sand Casting. Sand Casting Is Able To Produce The Part Varying From Several Gram Weight To Dozens Of Tons, Or Even Be Heavy To Hundred Tons.

The Disadvantage Of Sand Casting Is, Relatively Simple Structure Part Is Suitable For It. And Sand Castings Generally Have A Rough Surface Sometimes With Surface Impurities And Surface Variations. The Internal Density Of A Part Made By Sand Casting Also Is Lower Than Some More Advanced Casting Methods Such As Investment Casting Or Die Casting.

But The Most Advantage Of Sand Casting Is The Low Production Cost. It Can Be Used By Both Hand Molding And Machining Molding. Hand Molding Is Suitable To Single And Small Quantity Ordered Product Or Applies To Big, Complicated Shaped Casting Part Which Is Too Hard To Use By Machining Molding. The Machining Molding Is Able To Noticeably Increase The Surface Quality And The Degree Of Accuracy Of The Casted Part, But It's Quite Expansive.

Features Of Sand Casting
Relatively Inexpensive Production Cost
Low Costs For Equipment And Tooling
Suitable To Both Small Quantity Production And Large Quantity Production
Easy Forming Of Large Or Complex Parts
Short Lead Times
More Material Options

The Basic Sand Casting Process
Making The Pattern
The Pattern Is In The Same Shape And Dimension As The Desired Part, But The Allowance For Thermal Contraction And Shrink Shall Be Considered.

Create The Gates And Risers
This Step Is Also Included During "step 1: Making The Pattern". The Gates And Risers Give The Pathways For Metal Flow During The Sand Casting Process, And Let The Gas Venting As The Designer Expected.

Requirements Of Sand Molds For Metal Casting