Why Abrasive machining is not suitable for soft materials?

Why Abrasive machining is not suitable for soft materials?

Why AJM should not be used for machining soft and ductile materials? This hampers cut quality as well as properties and appearance of machined surface. While cutting deep slots or holes, these embedded abrasives can restrict further erosion and thus degrading trend in material removal rate (MRR) is observed.

Which machining process is not suitable for softer material?

Water jet cutting uses the beam of water exiting the orifice to cut soft materials. This method is not suitable for cutting hard materials.

Which type of materials Cannot be machine using abrasive jet machining?

Which type of materials cannot be machined using Abrasive jet machining? Explanation: Soft materials such as candy bars, thin softwood etc.., cannot be machined using AJM.

Why are abrasive particles not reused in abrasive jet machining?

After the first impact, abrasive particles lose its sharpness. Sharpness is one of the desired properties of abrasive particles as it helps easy and efficient cutting (eroding). So reuse of abrasive particles may result low material removal rate (MRR) and poor surface quality.

What are the advantage and disadvantages of abrasive jet machine?

The process is free from chatter and vibration as there is no contact between the tool (nozzle) and work material. Do not cause hardening of workpiece material. Very little or no heat generation during the cutting process, so it is suited for machining of heat sensitive material.

Which is not advantage of abrasive jet machining?

The abrasive powder cannot be reused because its cutting ability decrease and it may clog on orifice of the nozzle. Higher chance of stray cutting. Tapering may occur during drilling. AJM not suited for machining of soft material because the abrasive may get embedded in the work material.

What are the type of materials that can be machine using abrasive jet machining?

Explanation: Materials like ceramics, glass, hard and super hard materials can be machined using Abrasive jet machining.

What are advantages and disadvantages of abrasive jet machining?

No thermal damage of workpiece—Unlike conventional machining or thermal energy based non-traditional machining processes, AJM produce no palpable heat during machining. This protects the workpiece from thermal damage. It also facilitates machining of heat sensitive materials without having much problem.

Which is not advantages of the abrasive jet machining?

Not suitable for soft and ductile materials—If AJM is used for machining such materials, then hard abrasive grits tend to remain embedded on the machined surface and this hampers accuracy and surface quality. Read: Why AJM is not recommended for machining ductile materials?

Which is not advantages of abrasive jet machining?

Which is not advantages of abrasive jet machine?

What is abrasive jet machining?

Advantages and Limitations of Abrasive Jet Machining (AJM) Process In abrasive jet machining, a high velocity jet of abrasives is made to strike the work surface for removal of material by impact erosion. This process is favorable for removing various deposits and coatings on metallic and ceramic surfaces.

What are the advantages and disadvantages of soft machining?

The main advantages are its flexibility, low heat production. The material removal rate is low. Poor machining accuracy. High nozzle wear rate. The soft material cannot be machined. Additional cleaning of the work surface is required due to the sticking of abrasive grains in softer material.

Does carrier gas affect abrasive jet machining (AJM) performance?

Influences and effects of carrier gas on abrasive jet machining (AJM) performance are discussed here. Increased gas pressure can enhance MRR but it is limited by set-up capabilities. Higher gas flow rate can degrade MRR of mixing ratio is not maintained.

What are the disadvantages of abrasive materials?

Abrasive collection and disposal are problematic —Tiny grains of abrasive are injurious to health and must not be allowed to mix with atmosphere after machining. Thus a close machining chamber with proper ventilation system is mandatory.