Question

It is always important to use the right tool for the job, with the correct RPM (revolutions per minute) and feed rate. Select the possible outcomes that may occur as a result of failure to select a reasonable combination of tool, RPM, and feed rate:

a) Efficient material removal and precise machining.
b) Tool breakage or excessive wear.
c) High-quality surface finish.
d) Reduced energy consumption.
Select the correct outcomes:
a) 1 and 3
b) 2 and 4
c) 2 only
d) 1 and 2

Answer 1

The possible outcomes of not using the appropriate RPM and feed rate are tool breakage or excessive wear (2) and reduced energy consumption (4). Choosing the right tools and settings is crucial for efficient and precise machining, and proper maintenance like lubrication enhances efficiency.

Step-by-step explanation:

The possible outcomes as a result of failure to select a reasonable combination of tool, RPM, and feed rate in machining are tool breakage or excessive wear, and reduced energy consumption. The correct outcomes are therefore 2 and 4.

Using the correct RPM and feed rate is crucial for achieving the desired results when machining. If these are not optimized, it could result in inefficient material removal, poor surface finish, and could potentially damage the machinery or the product being machined. On the other hand, optimizing these factors contributes to efficient material removal, a high-quality surface finish, and potentially less energy consumption if the process is running smoothly.

When talking about simple machines, efficiency is indeed related to friction, and lubrication can greatly affect the efficiency by reducing friction. Therefore, proper machine maintenance including lubrication can significantly increase the lifespan and performance of the machining tools.

Choosing production technology with the lowest total cost, such as technology 3, reflects an understanding of optimizing machine hours against labor costs. This decision leans towards more automated and efficient production methods.