The image above represents co-efficient allowing for friction.

To compute for co-efficient allowing for friction, two essential parameters are needed and these parameters are **Friction ****Co-efficient of the Gating System (μ _{1})** and

**Friction**

**Co-efficient of the Mould (μ**

_{2}).The formula for calculating co-efficient allowing for friction:

μ = μ_{1} x μ_{2}

Where:

μ = Co-efficient allowing for Friction

μ_{1} = Friction Co-efficient of the Gating System

μ_{2} = Friction Co-efficient of the Mould

Let’s solve an example;

Find the co-efficient allowing for friction when the friction co-efficient of the gating system is 10 and the friction co-efficient of the mould is 14.

This implies that;

μ_{1} = Friction Co-efficient of the Gating System = 10

μ_{2} = Friction Co-efficient of the Mould = 14

μ = μ_{1} x μ_{2}

μ = 10 x 14

μ = 140

Therefore, the **co-efficient allowing for friction** is **140.**

**Calculating the Friction Co-efficient of the Gating System when the Co-efficient Allowing for Friction and the Friction Co-efficient of the Mould is Given.**

μ_{1} = ^{μ} / _{μ2}

Where;

μ_{1} = Friction Co-efficient of the Gating System

μ = Co-efficient allowing for Friction

μ_{2} = Friction Co-efficient of the Mould

Let’s solve an example;

Find the friction co-efficient of the gating system when the co-efficient allowing for friction is 45 and the friction co-efficient of the mould is 15.

This implies that;

μ = Co-efficient allowing for Friction – 45

μ_{2} = Friction Co-efficient of the Mould = 15

μ_{1} = ^{μ} / _{μ2}

μ_{1} = ^{45} / _{15}

μ_{1} = 3

Therefore, the **friction co-efficient of the gating system **is **3.**

**Calculating the Friction Co-efficient of the Mould when the Co-efficient Allowing for Friction and the Friction Co-efficient of the Gating System is Given.**

μ_{2} = ^{μ} / _{μ1}

Where;

μ_{2} = Friction Co-efficient of the Mould

μ = Co-efficient allowing for Friction

μ_{1} = Friction Co-efficient of the Gating System

Let’s solve an example;

Find the friction co-efficient of the mould when the co-efficient allowing for friction is 50 and the friction co-efficient of the gating system is 25.

This implies that;

μ = Co-efficient allowing for Friction = 50

μ1 = Friction Co-efficient of the Gating System = 25

μ_{2} = ^{μ} / _{μ1}

μ_{2} = ^{50} / _{25}

μ_{2} = 2

Therefore, the **friction co-efficient of the mould **is **2.**

Nickzom Calculator – **The Calculator Encyclopedia** is capable of calculating the co-efficient allowing for friction.

To get the answer and workings of the co-efficient allowing for friction using the **Nickzom Calculator – The Calculator Encyclopedia. **First, you need to obtain the app.

You can get this app via any of these means:

**Web** – https://www.nickzom.org/calculator-plus

To get access to the **professional **version via web, you need to **register** and **subscribe **for** NGN 1,500 **per** annum** to have utter access to all functionalities.

You can also try the **demo **version via https://www.nickzom.org/calculator

**Android (Paid)** – https://play.google.com/store/apps/details?id=org.nickzom.nickzomcalculator

**Android (Free)** – https://play.google.com/store/apps/details?id=com.nickzom.nickzomcalculator

**Apple (Paid)** – https://itunes.apple.com/us/app/nickzom-calculator/id1331162702?mt=8

Once, you have obtained the calculator encyclopedia app, proceed to the **Calculator Map, **then click on **Materials & Metallurgical**** **under **Engineering****.**

Now, Click on **Foundry Technology**** u**nder **Material & Metallurgical**

Now, Click on **Design of Gating System **under **Foundry Technology**

Now, Click on **Co-efficient Allowing for Friction**** **under **Design of Gating System**

The screenshot below displays the page or activity to enter your values, to get the answer for the co-efficient allowing for friction according to the respective parameters which are the **Friction ****Co-efficient of the Gating System (μ _{1})** and

**Friction**

**Co-efficient of the Mould (μ**

_{2}).Now, enter the values appropriately and accordingly for the parameters as required by the **Friction ****Co-efficient of the Gating System (μ _{1})** is

**10**and

**Friction**

**Co-efficient of the Mould (μ**is

_{2})**14**.

Finally, Click on Calculate

As you can see from the screenshot above, **Nickzom Calculator**– The Calculator Encyclopedia solves for the co-efficient allowing for friction and presents the formula, workings and steps too.