WHAT DOES "LXI, VXI, ZXI" MEAN IN CARS? CHECK OUT THE ANSWER !!

Almost all car manufacturers have different variants available for the same car.

The car looks the same but will have different features inside and outside.

Maruthi uses L, V, Z alphabets. and their petrol and diesel variants are identified by XI and DI respectively.

Maruti: LXI, VXI, ZXI or LDI, VDI, ZDI

Honda: EMT, SMT, SVMT, VMT, VXMT, SAT, VAT, SCVT, VCVT etc

In honda, E, S, SV, V, VX are the variants and AT means automatic transmission and CVT means continuous variable transmission. so if a model says VCVT that means that the variant is V and it has a CVT transmission in it.

In Honda cars petrol and diesel is identified by the separate markings iVTEC and iDTEC respectively

These are the different trim levels which is found in maruti suzuki vehicles.
Trim refers to the items that can be added to the interior and exterior of automobile to increase its appeal.
XI denotes petrol engine
LXI is for lower variant cars
VXI includes basic features like ac , power steering  etc
ZXI includes all the high end features  like ABS,Air bags,music player etc.

It is used for differentiating car models in maruti suzuki.
XI -  Petrol car
DI -  Diesel car
L -  Base model
V -  Full option model
Z -  Added features model

Now,
LXI is a base model Petrol car.
VXI is a full option Petrol car.
ZXI is a added features Petrol car

The same goes for LDI,  VDI,  ZDI. The only change is that it's a diesel car.

DIFFERENCE BETWEEN TURRET AND CAPSTAN LATHE EXPLAINED !!

A lathe is a machine tool that rotates the workpiece about an axis of rotation to perform various operations such as cutting, sanding, knurling, drilling, deformation, facing, turning, with tools that are applied to the workpiece to create an object with symmetry about that axis.

There are basically two broad classification of semi-automatic lathe.They are:

1. Turret Lathe
2. Capstan Lathe 

TURRET LATHE :

>The turret lathe is a form of metalworking lathe that is used for repetitive production of duplicate parts, which by the nature of their cutting process are usually interchangeable. 

>It has additional turret, which is an indexable toolholder that allows multiple cutting operations to be performed, each with a different cutting tool.

>Need for the operator to perform set-up tasks in between, such as installing or uninstalling tools is not required.

>The turret head is directly mounted on the saddle and the saddle slides over the bed ways. (See figure.)

Fig:Turret Lathe

>Saddle is moved to provide feed to the tool.
>They are heavy and durable.
>More feed and depth of cut are provided for machining.
>It is use for mass production of large size equal part.
>It is accommodated with power chucks.

CAPSTAN LATHE :

>The capstan lathe also has a turret which contains multiple cutting tools but in case of capstan lathe the turret head is mounted on the ram and the ram is mounted on the saddle.(See figure)

Fig:Capstan Lathe 

>Saddle is locked at a particular point and the ram is moved to provide feed to the tool.
>They are lighter in construction.
>Only limited amount of feed and depth of cut are provided for machining.
>It is use for mass production of small size equal part.
>It have hand operated collet chucks.

Also see : LATHE AND OPERATIONS ON IT

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DIFFERENCE BETWEEN WELDING AND BRAZING EXPLAINED !!

Welding and brazing are the metal joining process.Type of joining process to be applied for joining two parts depends on many factors.

WELDING :

>Welding is a process in which both the participating metals are metaled and re solidified to complete as one metal. Proper melting of mating parts is a basic criteria to result a sound weld.

BRAZING :

>In case of Brazing both the participating metals are not melted but a third metal of lower melting point is used to be filled in between the two. The solidification of this third metal results the joining. 

>The filler metal is drawn into the gap between the closely fitted surfaces of the joint by capillary action.

>The design of the joint should incorporate a minimum gap into which the braze filler metal will be drawn.

Comparison between welding and brazing :

S.No	Welding	Brazing
1	Welding joints are strongest joints used to bear the load. Strength of the welded portion of joint is usually more than the strength of base metal.	Brazing joints are weaker than welding joints. This can be used to bear the load up to some extent.
2	To join, work pieces need to be heated till their melting point.	Work pieces are heated but below their melting point.
3	Heat cost is involved and high skill level is required.	Cost involved and skill required is lower than welding.
4	Mechanical properties of base metal may change at the joint due to heating and cooling.	mechanical properties may change at joint but it is almost negligible.
5	Temperature required is 3800°C in welding joints.	Temperature may go to 600°C in brazing joints.
6	Heat treatment is generally required to eliminate undesirable effects of welding.	No heat treatment is required after brazing.
7	No preheating of workpiece is required before welding as it is carried out at high temperature.	Preheating is desirable to make strong joint as brazing is carried out at relatively low temperature.

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